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R3600/infoscience/var_www_js/bibmerge_engine.js
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bibmerge_engine.js
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			/*
			* This file is part of Invenio.
			* Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 CERN.
			*
			* Invenio is free software; you can redistribute it and/or
			* modify it under the terms of the GNU General Public License as
			* published by the Free Software Foundation; either version 2 of the
			* License, or (at your option) any later version.
			*
			* Invenio is distributed in the hope that it will be useful, but
			* WITHOUT ANY WARRANTY; without even the implied warranty of
			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
			* General Public License for more details.
			*
			* You should have received a copy of the GNU General Public License
			* along with Invenio; if not, write to the Free Software Foundation, Inc.,
			* 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
			*/

			var gRecID1 = null;
			var gRecID2 = null;
			var gRecord2Mode = 'recid'; //'recid', 'file', 'revision'

			var gResultListMode = 'search'; //null, 'search', 'revisions'
			var gSearchResults = [[], [], []];
			var gSearchResultsIndex = -1;
			var gRevisions = [[], []];
			var gRevisionsIndex = -1;

			var gHash;
			var gHASH_CHECK_INTERVAL = 150;
			var gHashCheckTimerID;
			var gMsgTimeout;

			$(document).ready( function(){
			initAJAX();
			initPanel();
			initContent();
			gHashCheckTimerID = setInterval(initStateFromHash, gHASH_CHECK_INTERVAL);
			});

			function showMessage(msgType, message, timeToHide) {
			hideMessage();
			clearTimeout(gMsgTimeout);
			$('#bibMergeMessage').removeClass();
			if (msgType == 'LoadingMsg') {
			message = message + ' <img src="/img/loading.gif" />';
			$('#bibMergeMessage').addClass('warning');
			}
			else if (msgType == 'OKMsg') {
			$('#bibMergeMessage').addClass('warninggreen');
			}
			else if (msgType == 'ErrorMsg') {
			$('#bibMergeMessage').addClass('warningred');
			}
			//$('#bibMergeMessage').html(message).show('drop','',500);
			$('#bibMergeMessage').html(message).show();
			//hide the message after some milliseconds if the parameter is set
			if (typeof(timeToHide) != 'undefined')
			hideMessage(timeToHide);
			}

			function hideMessage(timeout) {
			if (typeof(timeout) != 'undefined') { //check if parameter was defined
			gMsgTimeout = setTimeout(function(){
			$('#bibMergeMessage').removeClass().hide().fadeOut();
			}, timeout);
			}
			else //if parameter 'timeout' not set, then hide without delay
			$('#bibMergeMessage').removeClass().hide().fadeOut();
			}

			function isValidRecid1(recid) {
			var recnum = parseInt(recid);
			if (isNaN(recnum) \|\| recnum < 1 \|\| recid.indexOf('.')>0)
			return false;
			return true;
			}

			function getRecid2Mode(recid) {
			if (isValidRecid1(recid))
			return 'recid';
			else if ( isRevisionID(recid) )
			return 'revision';
			else if (recid=='tmp')
			return 'tmpfile';
			else if (recid=='none')
			return 'none';
			else
			return false;
			}

			function initStateFromHash() {
			if (window.location.hash == gHash)
			return;
			gHash = window.location.hash;
			if (gHash == '') {
			$('#bibMergeContent').html('Select two records to be compared from the side panel.');
			return;
			}
			var parsedHash = deserializeHash(gHash);

			if (parsedHash.recid1 && isValidRecid1(parsedHash.recid1)==true && parsedHash.recid2 && getRecid2Mode(parsedHash.recid2)!=false) {
			ajaxGetRecordCompare(parsedHash.recid1, parsedHash.recid2);
			return;
			}
			// if wrong parameters where given in the url:
			$('#bibMergeContent').html('INVALID URL PARAMETERS');
			}

			function deserializeHash(aHash) {
			var hashElements = {};
			var args = aHash.slice(1).split('&');
			var tmpArray;
			for (var i=0, n=args.length; i<n; i++){
			tmpArray = args[i].split('=');
			if (tmpArray.length == 2)
			hashElements[tmpArray[0]] = tmpArray[1];
			}
			return hashElements;
			}

			function changeAndSerializeHash(updateData) {
			clearTimeout(gHashCheckTimerID);
			gHash = '#';
			for (var key in updateData)
			gHash += key.toString() + '=' + updateData[key].toString() + '&';
			gHash = gHash.slice(0, -1);
			window.location.hash = gHash;
			gHashCheckTimerID = setInterval(initStateFromHash, gHASH_CHECK_INTERVAL);
			}

			function initContent() {
			initFieldGroupHeaders(".bibMergeHeaderFieldnum"); //initialize all of them
			$('#bibMergeContent a').live('click', resetDiffs);
			$('.bibMergeFieldGroupRefresh').live('click', onclickFieldGroupRefresh);
			//$('.bibMergeFieldGroupDiff').live('click', onclickFieldGroupRefresh);
			$('.bibMergeFieldGroupMerge').live('click', onclickFieldGroupMerge)
			$('.bibMergeFieldGroupMergeNC').live('click', onclickFieldGroupMerge)
			$('.bibMergeFieldReplace').live('click', onclickFieldReplace);
			$('.bibMergeFieldAdd').live('click', onclickFieldAdd);
			$('.bibMergeFieldDelete').live('click', onclickFieldDelete);
			$('.bibMergeFieldMerge').live('click', onclickFieldMerge);
			$('.bibMergeSubfieldDelete').live('click', onclickSubfieldDelete);
			$('.bibMergeSubfieldReplace').live('click', onclickSubfieldReplace);
			$('.bibMergeSubfieldAdd').live('click', onclickSubfieldAdd);
			$('.bibMergeFieldGroupDiff').live('click', onclickSubfieldDiff);
			$('#bibMergeContent a:not([class])').live('click', notImplemented);
			}
			function resetDiffs() {
			$('#bibMergeContent td:has(span.bibMergeDiffSpanSame, span.bibMergeDiffSpanIns, span.bibMergeDiffSpanDel, span.bibMergeDiffSpanSub, )').each(function (i) {
			var subfield_value = $(this).text();
			$(this).html( subfield_value );
			});
			}
			function getSubfieldInfo(subfield) {
			var sfinfo = {}; //result
			sfinfo.sfindex1 = -1;
			sfinfo.sfindex2 = -1;
			sfinfo.subfield_lines = 0;
			var currTR = subfield.parents('tr');
			var currSF1id = currTR.children('td').eq(1).attr('id');
			while(!currSF1id) {
			sfinfo.subfield_lines++;
			if ( currTR.children('td').eq(1).text() != '')
			sfinfo.sfindex1++;
			if ( currTR.children('td').eq(3).text() != '')
			sfinfo.sfindex2++;
			currTR = currTR.prev('tr');
			currSF1id = currTR.children('td').eq(1).attr('id');
			}
			sfinfo.field1id = currSF1id;
			sfinfo.field2id = currTR.children('td').eq(3).attr('id');
			sfinfo.numOfSubfields1 = sfinfo.sfindex1 + 1;
			sfinfo.numOfSubfields2 = sfinfo.sfindex2 + 1;

			currTR = subfield.parents('tr');
			currTR = currTR.next('tr');
			while( currTR.size() > 0 && !currTR.children('td').eq(1).attr('id')) {
			sfinfo.subfield_lines++;
			if ( currTR.children('td').eq(1).text() != '')
			sfinfo.numOfSubfields1++;
			if ( currTR.children('td').eq(3).text() != '')
			sfinfo.numOfSubfields2++;
			currTR = currTR.next('tr');
			}
			return sfinfo;
			}
			function onclickSubfieldDiff() {
			var sfinfo = getSubfieldInfo( $(this) );
			var currTR = $(this).parents('tr'); //the current row of the table
			var value1 = currTR.children('td').eq(1).text();
			var value2 = currTR.children('td').eq(3).text();
			//if one of the subfields is empty
			if (value1 == '' \|\| value2 == '')
			showMessage('ErrorMsg', 'One of the subfields is missing, no difference to show', 6000);
			else if (value1 == value2)
			showMessage('OKMsg', 'Subfields are identical, no difference to show', 6000);
			else {
			//ajax request to get the diffed row from server side
			var _data = {
			requestType: 'diffSubfield',
			recID1: gRecID1,
			recID2: gRecID2,
			record2Mode: gRecord2Mode,
			fieldCode1: sfinfo.field1id,
			fieldCode2: sfinfo.field2id,
			sfindex1: sfinfo.sfindex1,
			sfindex2: sfinfo.sfindex2
			};
			showMessage('LoadingMsg', 'Diffing subfields...');
			ajaxRequest(_data, function(html){
			var prevTR = currTR.prev('tr');
			currTR.remove();
			prevTR.after(html);
			});
			}
			return false;
			}
			function onclickSubfieldDelete() {
			var sfinfo = getSubfieldInfo( $(this) );
			var currTR = $(this).parents('tr');
			if (currTR.children('td').eq(1).text() == '') { //if subfield1 is empty
			showMessage('ErrorMsg', 'Cannot delete subfield that doesn\'t exist', 6000);
			return false;
			}
			if (sfinfo.numOfSubfields1 == 1) //if field has one subfield, then delete field
			$("td#"+ sfinfo.field1id +" a.bibMergeFieldDelete").click();
			else {
			//ajax request to delete subfield on the server side
			var _data = {
			requestType: 'deleteSubfield',
			recID1: gRecID1,
			recID2: gRecID2,
			record2Mode: gRecord2Mode,
			fieldCode1: sfinfo.field1id,
			fieldCode2: sfinfo.field2id,
			sfindex1: sfinfo.sfindex1,
			sfindex2: sfinfo.sfindex2
			};
			showMessage('LoadingMsg', 'Deleting subfield...');
			ajaxRequest(_data, function(html){} );
			//perform deletion on the client side
			if (currTR.children('td').eq(3).text() == '') //if subfield2 is empty
			currTR.remove();
			else
			currTR.children('td').eq(1).empty();
			currTR.children('td.bibMergeCellSimilarityGreen').attr('class', 'bibMergeCellSimilarityRed');
			}
			return false;
			}
			function onclickSubfieldReplace() {
			var sfinfo = getSubfieldInfo( $(this) );
			var currTR = $(this).parents('tr');
			if (currTR.children('td').eq(3).text() == '') { //if subfield2 is empty
			showMessage('ErrorMsg', 'Cannot replace subfield with one that doesn\'t exist', 6000);
			return false;
			}
			if (currTR.children('td').eq(1).text() != '') { //if subfield1 is not empty
			//ajax request to replace subfield on the server side
			var _data = {
			requestType: 'replaceSubfield',
			recID1: gRecID1,
			recID2: gRecID2,
			record2Mode: gRecord2Mode,
			fieldCode1: sfinfo.field1id,
			fieldCode2: sfinfo.field2id,
			sfindex1: sfinfo.sfindex1,
			sfindex2: sfinfo.sfindex2
			};
			showMessage('LoadingMsg', 'Replacing subfield...');
			ajaxRequest(_data, function(html){} );
			//perform replacement on the client side
			currTR.children('td').eq(1).text( currTR.children('td').eq(3).text() );
			currTR.children('td.bibMergeCellSimilarityRed').attr('class', 'bibMergeCellSimilarityGreen');
			return false;
			}
			else {
			currTR.children('td').eq(2).children('a.bibMergeSubfieldAdd').click();
			}
			return false;
			}
			function onclickSubfieldAdd() {
			var sfinfo = getSubfieldInfo( $(this) );
			var currTR = $(this).parents('tr');
			if (currTR.children('td').eq(3).text() == '') { //if subfield2 is empty
			showMessage('ErrorMsg', 'Cannot add subfield that doesn\'t exist', 6000);
			return false;
			}
			if (sfinfo.numOfSubfields1 == 0) {//field1 doesn't exist
			showMessage('ErrorMsg', 'Field in the first record doesn\'t exist. Use Add Field instead which creates a new field', 8000);
			}
			else {
			if (currTR.children('td').eq(1).text() == '') //if subfield1 is empty
			sfinfo.sfindex1++; //insertion should be before the next subfield that exists

			//ajax add subfield before sfindex1 on the server side
			var _data = {
			requestType: 'addSubfield',
			recID1: gRecID1,
			recID2: gRecID2,
			record2Mode: gRecord2Mode,
			fieldCode1: sfinfo.field1id,
			fieldCode2: sfinfo.field2id,
			sfindex1: sfinfo.sfindex1,
			sfindex2: sfinfo.sfindex2
			};
			showMessage('LoadingMsg', 'Adding subfield...');
			ajaxRequest(_data, function(html){} );
			//perform addition of subfield on the client side
			if (currTR.children('td').eq(1).text() != '') { //if subfield1 is not empty
			//create another subfield line
			currTR.after( "<tr>"+ currTR.html() +"</tr>" );
			currTR.next('tr').children('td').eq(3).empty();
			currTR.next('tr').children('td.bibMergeCellSimilarityGreen').attr('class', 'bibMergeCellSimilarityRed');
			}
			currTR.children('td').eq(1).text( currTR.children('td').eq(3).text() ); //replace value
			currTR.children('td.bibMergeCellSimilarityRed').attr('class', 'bibMergeCellSimilarityGreen');
			}
			return false;
			}
			function onclickFieldMerge() {
			var fieldGroupDiv = $(this).parents('.bibMergeFieldGroupDiv');
			var ftag = getFieldTag(fieldGroupDiv);
			var fieldID1 = $(this).parents('tr').children('td').eq(1).attr('id');
			var fieldID2 = $(this).parents('tr').children('td').eq(3).attr('id');
			var _data = {
			requestType: 'mergeField',
			recID1: gRecID1,
			recID2: gRecID2,
			record2Mode: gRecord2Mode,
			fieldTag: ftag,
			fieldCode1: fieldID1,
			fieldCode2: fieldID2
			};
			showMessage('LoadingMsg', 'Merging Field...');
			ajaxRequest(_data, function(html) {
			var fnum = ftag.substring(0,3);
			var fieldGroupsOfTag = $("div.bibMergeFieldGroupDiv[id*='-"+fnum+"']");
			var prevDiv = fieldGroupsOfTag.eq(0).prev('.bibMergeFieldGroupDiv');
			fieldGroupsOfTag.remove();
			if (html != '') {
			prevDiv.after(html);
			initFieldGroupHeaders("div.bibMergeFieldGroupDiv[id*='-"+fnum+"'] .bibMergeHeaderFieldnum");
			}
			});
			return false;
			}
			function onclickFieldDelete() {
			var fieldGroupDiv = $(this).parents('.bibMergeFieldGroupDiv');
			var ftag = getFieldTag(fieldGroupDiv);
			var fieldID1 = $(this).parents('tr').children('td').eq(1).attr('id');
			var fieldID2 = $(this).parents('tr').children('td').eq(3).attr('id');
			var _data = {
			requestType: 'deleteField',
			recID1: gRecID1,
			recID2: gRecID2,
			record2Mode: gRecord2Mode,
			fieldTag: ftag,
			fieldCode1: fieldID1,
			fieldCode2: fieldID2
			};
			showMessage('LoadingMsg', 'Deleting Field...');
			ajaxRequest(_data, function(html) {
			var fnum = ftag.substring(0,3);
			var fieldGroupsOfTag = $("div.bibMergeFieldGroupDiv[id*='-"+fnum+"']");
			var prevDiv = fieldGroupsOfTag.eq(0).prev('.bibMergeFieldGroupDiv');
			fieldGroupsOfTag.remove();
			if (html != '') {
			prevDiv.after(html);
			initFieldGroupHeaders("div.bibMergeFieldGroupDiv[id*='-"+fnum+"'] .bibMergeHeaderFieldnum");
			}
			});
			return false;
			}
			function onclickFieldAdd() {
			var fieldGroupDiv = $(this).parents('.bibMergeFieldGroupDiv');
			var ftag = getFieldTag(fieldGroupDiv);
			var fieldID1 = $(this).parents('tr').children('td').eq(1).attr('id');
			var fieldID2 = $(this).parents('tr').children('td').eq(3).attr('id');
			var _data = {
			requestType: 'addField',
			recID1: gRecID1,
			recID2: gRecID2,
			record2Mode: gRecord2Mode,
			fieldTag: ftag,
			fieldCode1: fieldID1,
			fieldCode2: fieldID2
			};
			showMessage('LoadingMsg', 'Adding Field...');
			ajaxRequest(_data, function(html) {
			var fnum = ftag.substring(0,3);
			var fieldGroupsOfTag = $("div.bibMergeFieldGroupDiv[id*='-"+fnum+"']");
			//fieldGroupsOfTag.hide('drop','',500);
			var prevDiv = fieldGroupsOfTag.eq(0).prev('.bibMergeFieldGroupDiv');
			fieldGroupsOfTag.remove();
			prevDiv.after(html);
			initFieldGroupHeaders("div.bibMergeFieldGroupDiv[id*='-"+fnum+"'] .bibMergeHeaderFieldnum");
			});
			return false;
			}
			function onclickFieldReplace() {
			var fieldGroupDiv = $(this).parents('.bibMergeFieldGroupDiv');
			var ftag = getFieldTag(fieldGroupDiv);
			var fieldID1 = $(this).parents('tr').children('td').eq(1).attr('id');
			var fieldID2 = $(this).parents('tr').children('td').eq(3).attr('id');
			var _data = {
			requestType: 'replaceField',
			recID1: gRecID1,
			recID2: gRecID2,
			record2Mode: gRecord2Mode,
			fieldTag: ftag,
			fieldCode1: fieldID1,
			fieldCode2: fieldID2
			};
			showMessage('LoadingMsg', 'Replacing Field...');
			ajaxRequest(_data, function(html) {
			var fnum = ftag.substring(0,3);
			var fieldGroupsOfTag = $("div.bibMergeFieldGroupDiv[id*='-"+fnum+"']");
			//fieldGroupsOfTag.hide('drop','',500);
			var prevDiv = fieldGroupsOfTag.eq(0).prev('.bibMergeFieldGroupDiv');
			fieldGroupsOfTag.remove();
			prevDiv.after(html);
			initFieldGroupHeaders("div.bibMergeFieldGroupDiv[id*='-"+fnum+"'] .bibMergeHeaderFieldnum");
			});
			return false;
			}
			function onclickFieldGroupMerge() {
			var mergeType; //merging mode
			if ( $(this).hasClass('bibMergeFieldGroupMergeNC') )
			mergeType = 'mergeNCFieldGroup';
			else
			mergeType = 'mergeFieldGroup';
			var fieldGroupDiv = $(this).parents('.bibMergeFieldGroupDiv');
			var ftag = getFieldTag(fieldGroupDiv);
			var _data = {
			requestType: mergeType,
			recID1: gRecID1,
			recID2: gRecID2,
			record2Mode: gRecord2Mode,
			fieldTag: ftag
			};
			showMessage('LoadingMsg', 'Merging...');
			ajaxRequest(_data, function(html) {
			var fnum = ftag.substring(0,3);
			var fieldGroupsOfTag = $("div.bibMergeFieldGroupDiv[id*='-"+fnum+"']");
			//fieldGroupsOfTag.hide('drop','',500);
			var prevDiv = fieldGroupsOfTag.eq(0).prev('.bibMergeFieldGroupDiv');
			fieldGroupsOfTag.remove();
			prevDiv.after(html);
			initFieldGroupHeaders("div.bibMergeFieldGroupDiv[id*='-"+fnum+"'] .bibMergeHeaderFieldnum");
			});
			return false;
			}
			function onclickFieldGroupRefresh() {
			var refType;
			if ( $(this).hasClass('bibMergeFieldGroupDiff') )
			refType = 'getFieldGroupDiff';
			else
			refType = 'getFieldGroup';
			var fieldGroupDiv = $(this).parents('.bibMergeFieldGroupDiv');
			var ftag = getFieldTag(fieldGroupDiv);
			var _data = {
			requestType: refType,
			recID1: gRecID1,
			recID2: gRecID2,
			record2Mode: gRecord2Mode,
			fieldTag: ftag
			};
			showMessage('LoadingMsg', 'Please wait...');
			ajaxRequest(_data, function(html) {
			var fnum = ftag.substring(0,3);
			var fieldGroupsOfTag = $("div.bibMergeFieldGroupDiv[id*='-"+fnum+"']");
			//fieldGroupsOfTag.hide('drop','',500);
			var prevDiv = fieldGroupsOfTag.eq(0).prev('.bibMergeFieldGroupDiv');
			fieldGroupsOfTag.remove();
			prevDiv.after(html);
			initFieldGroupHeaders("div.bibMergeFieldGroupDiv[id*='-"+fnum+"'] .bibMergeHeaderFieldnum");
			});
			return false;
			}
			function initFieldGroupHeaders(selector) {
			$(selector).toggle(
			function() {
			$(this).parents(".bibMergeFieldGroupDiv").find(".bibMergeFieldTable").hide();
			return false; },
			function() {
			$(this).parents(".bibMergeFieldGroupDiv").find(".bibMergeFieldTable").show();
			return false;
			}
			);
			}

			function initPanel() {
			$('#bibMergeRecInput1').focus();
			$('#bibMergeMessage').hide();
			onclickSelectSearch();
			$('#bibMergeSelectSearch').click(onclickSelectSearch);
			$('#bibMergeSelectDedupe').click(onclickSelectDedupe);
			$('#bibMergeSelectRevisions').click(onclickSelectRevisions);
			$('#bibMergeGetPrev').click(onclickGetPrev);
			$('#bibMergeGetNext').click(onclickGetNext);
			$('#bibMergeBtnCompare').click(compareRecords);
			$('#bibMergeBtnSubmit').click(onclickSubmitButton);
			$('#bibMergeBtnCancel').click(onclickCancelButton);
			$('#bibMergeBtnSearch').click(onclickSearchButton);
			$('#bibMergeRecCopy').click(onclickRecCopy);
			$('#bibMergeRecMerge').click(onclickRecMerge);
			$('#bibMergeRecMergeNC').click(onclickRecMergeNC);
			$('#bibMergeLinkToBibEdit1').click(onclickLinkToBibEdit1);
			$('#bibMergeLinkToBibEdit2').click(onclickLinkToBibEdit2);
			$('.bibMergeMenuSectionHeader').toggle(menuSectionHeaderClose, menuSectionHeaderOpen);
			// $('#bibMergeMethodSelect').change(onchangeMethodSelect);
			onchangeMethodSelect();
			$('#bibMergeSelectListRow select option').live('click', onclickSearchResult);
			// Initialize menu positioning (poll for scrolling).
			setInterval(positionMenu, 250);
			$('#bibMergeRecInput1').keypress( function(event) {
			if (event.keyCode == 13) //on press 'enter'
			$('#bibMergeRecInput2').focus();
			});
			$('#bibMergeRecInput2').keypress( function(event) {
			if (event.keyCode == 13) //on press 'enter'
			compareRecords();
			});
			$('#bibMergeSearchInput').keypress( function(event) {
			if (event.keyCode == 13) //on press 'enter'
			$('#bibMergeBtnSearch').click();
			});
			$('#bibMergeMenuSectionCandidates div.bibMergeMenuSectionHeader').click();
			$('#bibMergeMenuSectionActions div.bibMergeMenuSectionHeader').click();
			}
			function menuSectionHeaderOpen() {
			$(this).parents('div.bibMergeMenuSection').find('table').show();
			$(this).find('img').attr('src', "/img/bullet_toggle_minus.png");
			}
			function menuSectionHeaderClose() {
			$(this).parents('div.bibMergeMenuSection').find('table').hide();
			$(this).find('img').attr('src', "/img/bullet_toggle_plus.png");
			}

			function onclickRecCopy() {
			var answer = confirm("Do you want to replace all fields of record1 with those of record2?");
			if (!answer)
			return false;

			var _data = {
			requestType: 'recCopy',
			recID1: gRecID1,
			recID2: gRecID2,
			record2Mode: gRecord2Mode
			};
			showMessage('LoadingMsg', 'Copying record2 to record1');
			ajaxRequest(_data, function(html){
			$('#bibMergeContent').html(html);
			initFieldGroupHeaders('.bibMergeHeaderFieldnum'); //initialize all of them
			});
			return false;
			}
			function onclickRecMerge() {
			var answer = confirm("Do you want to merge fields of record1 and record2 into record1?");
			if (!answer)
			return false;

			var _data = {
			requestType: 'recMerge',
			recID1: gRecID1,
			recID2: gRecID2,
			record2Mode: gRecord2Mode
			};
			showMessage('LoadingMsg', 'Merging record2 with record1');
			ajaxRequest(_data, function(html){
			$('#bibMergeContent').html(html);
			initFieldGroupHeaders('.bibMergeHeaderFieldnum'); //initialize all of them
			});
			return false;
			}

			function onclickRecMergeNC() {
			var answer = confirm("Do you want to merge non-conflicting fields of record1 and record2 into record1?");
			if (!answer)
			return false;

			var _data = {
			requestType: 'recMergeNC',
			recID1: gRecID1,
			recID2: gRecID2,
			record2Mode: gRecord2Mode
			};
			showMessage('LoadingMsg', 'Merging record2 with record1');
			ajaxRequest(_data, function(html){
			$('#bibMergeContent').html(html);
			initFieldGroupHeaders('.bibMergeHeaderFieldnum'); //initialize all of them
			});
			return false;
			}

			function buildSelectList(mode) {
			var _list = null;
			var _tmp;
			var _optionsHtml = "";
			if (mode=='forSearch') {
			_list = gSearchResults;
			for (var i=0, n=_list[0].length; i<n; i++)
			_optionsHtml += "<option title=\""+ _list[2][i] +"\">"+ _list[1][i] +"</option>\n";
			}
			else {
			_list = gRevisions;
			for (var i=0, n=_list[0].length; i<n; i++)
			_optionsHtml += "<option>"+ _list[1][i] +"</option>\n";
			}
			$('#bibMergeSelectListRow select').html(_optionsHtml);
			}

			function managePrevNextButtons(action) {
			var _index;
			var _list;
			// take values from the correct global variable
			if (gResultListMode == 'search') {
			_index = gSearchResultsIndex;
			_list = gSearchResults[0];
			}
			else if (gResultListMode == 'revisions') {
			_index = gRevisionsIndex;
			_list = gRevisions[0];
			}
			// perform requested action
			if (action == 'hide') {
			$('#bibMergeGetPrev').hide();
			$('#bibMergeResultIndex').hide();
			$('#bibMergeGetNext').hide();
			}
			else if (action == 'show') {
			var _indexstr = '-';
			if (_index >= 0)
			_indexstr = _index+1;
			$('#bibMergeResultIndex').html( _indexstr+'/'+_list.length);

			$('#bibMergeGetPrev').show();
			$('#bibMergeResultIndex').show();
			$('#bibMergeGetNext').show();
			}
			else if (action == 'next') {
			if (_index+1 < _list.length) {
			_index++;
			$('#bibMergeResultIndex').html( _index+1+'/'+_list.length);
			$('#bibMergeRecInput2').val( _list[_index] );
			$('#bibMergeSelectList option:eq('+ _index +')').attr('selected', 'selected');
			compareRecords();
			}
			else
			showMessage('ErrorMsg', 'Reached the end of list of candidate items', 6000);
			}
			else if (action == 'prev') {
			if (_index-1 >= 0) {
			_index--;
			$('#bibMergeResultIndex').html( _index+1+'/'+_list.length);
			$('#bibMergeRecInput2').val( _list[_index] );
			$('#bibMergeSelectList option:eq('+ _index +')').attr('selected', 'selected');
			compareRecords();
			}
			else
			showMessage('ErrorMsg', 'Reached the end of list of candidate items', 6000);
			}
			//update the correct global variable
			if (gResultListMode == 'search')
			gSearchResultsIndex = _index;
			else if (gResultListMode == 'revisions')
			gRevisionsIndex = _index;
			}

			function ajaxRequestRevisions() {
			var recid = gRecID1;
			if (recid == null)
			if ($('#bibMergeRecInput1').attr('value') != "")
			recid = $('#bibMergeRecInput1').attr('value');
			else {
			showMessage('ErrorMsg', 'Select a record to get the revisions from', 6000);
			return;
			}

			var _data = {
			requestType: 'searchRevisions',
			recID1: recid
			};
			showMessage('LoadingMsg', 'Retrieving revisions...');
			$.ajax({
			data: { jsondata: JSON.stringify(_data) },
			success: function(json){
			if (json['resultCode'] != 0){
			showMessage('ErrorMsg', json['resultText'], 6000);
			}
			else {
			gRevisions = json['results'];
			gRevisionsIndex = -1;
			buildSelectList('forRevisions');
			managePrevNextButtons('show');
			if (gRevisions.length == 0)
			showMessage('ErrorMsg', 'No revisions found', 6000);
			else
			showMessage('OKMsg', json['resultText'], 6000);
			}
			}
			});
			}

			function onclickSearchButton() {
			var _query = $('#bibMergeSearchInput').attr('value');
			var _data = {
			requestType: 'searchCandidates',
			query: _query
			};
			$.ajax({
			data: {
			jsondata: JSON.stringify(_data)
			},
			dataType: 'json',
			success: function(json) {
			if (json['resultCode'] != 0){
			showMessage('ErrorMsg', json['resultText'], 6000);
			}
			else {
			gSearchResults = json['results'];
			gSearchResultsIndex = -1;
			buildSelectList('forSearch');
			managePrevNextButtons('show');
			if (gSearchResults.length == 0)
			showMessage('ErrorMsg', 'No results found', 6000);
			else
			showMessage('OKMsg', json['resultText'], 6000);
			}
			}
			});
			return false; //for the link not to be followed
			}
			function onclickGetPrev() {
			managePrevNextButtons('prev');
			return false;
			}
			function onclickGetNext() {
			managePrevNextButtons('next');
			return false;
			}
			function onclickSelectSearch() {
			$('.bibMergeSelectListSelected').removeClass();
			$('#bibMergeSelectSearch').addClass('bibMergeSelectListSelected');
			$('#bibMergeSearchRow').show();
			$('#bibMergeSelectListRow').show();
			buildSelectList('forSearch');
			gResultListMode = 'search';
			managePrevNextButtons('show');
			return false;
			}
			function onclickSelectDedupe() {
			onclickSelectClose();
			notImplemented();
			return false;
			}
			function onclickSelectRevisions() {
			$('.bibMergeSelectListSelected').removeClass();
			$('#bibMergeSelectRevisions').addClass('bibMergeSelectListSelected');
			$('#bibMergeSearchRow').hide();
			$('#bibMergeSelectListRow').show();
			//if list is empty or first result doesn't start with recid1
			if (gRevisions.length==0 \|\| gRevisions[0].indexOf(gRecID1+'.')==-1) {
			ajaxRequestRevisions();
			}
			buildSelectList('forRevisions');
			gResultListMode = 'revisions';
			managePrevNextButtons('show');
			return false;
			}
			function onclickSelectClose() {
			$('.bibMergeSelectListSelected').removeClass();
			$('#bibMergeSearchRow').hide();
			$('#bibMergeSelectListRow').hide();
			gResultListMode = null;
			managePrevNextButtons('hide');
			return false;
			}

			function onclickSearchResult() {
			//find index of selected option
			var _index = 0;
			var currOpt = $(this).prev('option');
			while(currOpt.html()!=null) {
			_index++;
			currOpt = currOpt.prev('option');
			}
			//set the value of record2 input field
			if (gResultListMode == 'search') {
			$('#bibMergeRecInput2').val( gSearchResults[0][_index] );
			gSearchResultsIndex = _index;
			}
			else if (gResultListMode == 'revisions') {
			$('#bibMergeRecInput2').val( gRevisions[0][_index] );
			gRevisionsIndex = _index;
			}
			managePrevNextButtons('show');
			compareRecords();
			}

			function onchangeMethodSelect() {
			option = $("#bibMergeMethodSelect :selected").val();
			switch(option) {
			case "(none)":
			$("#bibMergeSearchPanel").hide();
			break;
			case "Search":
			$("#bibMergeSearchPanel").show();
			break;
			case "Revisions":
			break;
			}
			}
			function compareRecords() {
			var recid1 = $('#bibMergeRecInput1').attr('value');
			var recid2 = $('#bibMergeRecInput2').attr('value');
			if (recid2 == "")
			recid2 = 'none';
			ajaxGetRecordCompare(recid1, recid2);
			}
			function ajaxGetRecordCompare(_recid1, _recid2) {
			// validity check
			if (!isValidRecid1(_recid1)) {
			showMessage('ErrorMsg', 'Invalid record1', 6000);
			return;
			}
			var _mode = getRecid2Mode(_recid2);
			if (_mode == false) {
			showMessage('ErrorMsg', 'Invalid record2', 6000);
			return;
			}
			//ajax request
			var _data = {
			requestType: 'getRecordCompare',
			recID1: _recid1,
			recID2: _recid2,
			record2Mode: _mode
			};
			showMessage('LoadingMsg', 'Please wait...');
			panelDisabled(true);
			ajaxRequest(_data, function(html) {
			$('#bibMergeContent').html(html);
			$('#bibMergeRecInput1').val(_recid1);
			$('#bibMergeRecInput2').val(_recid2);
			changeAndSerializeHash({recid1: _recid1, recid2: _recid2});
			gRecID1 = _recid1;
			gRecID2 = _recid2;
			initFieldGroupHeaders('.bibMergeHeaderFieldnum'); //initialize all of them
			panelDisabled(false);
			});
			}
			function isRevisionID(str) {
			if (str.indexOf('.') > -1) {
			var _array = str.split('.');
			if (_array.length==2 && !isNaN(_array[0]) && !isNaN(_array[1]) && _array[1].length==14)
			return true;
			}
			return false;
			}
			function onclickSubmitButton() {
			var checkbox = $('#bibMergeDupeCheckbox').attr('checked');

			var _data = {
			requestType: 'submit',
			recID1: gRecID1
			};
			if (checkbox == true)
			_data['duplicate'] = gRecID2;

			showMessage('LoadingMsg', 'Submitting...');
			ajaxRequest(_data, function(html){
			window.location.hash = '';
			});

			if (checkbox == true)
			$('#bibMergeDupeCheckbox').attr('checked', false);
			}
			function onclickCancelButton() {
			var _data = {
			requestType: 'cancel',
			recID1: gRecID1
			};
			showMessage('LoadingMsg', 'Cancelling...');
			ajaxRequest(_data, function(html){
			window.location.hash = '';
			});
			}
			function ajaxRequest(data, onSuccessFunc){
			/* Create Ajax request. */
			$.ajax({
			data: { jsondata: JSON.stringify(data) },
			success: function(json){
			if (json['resultCode'] != 0){
			showMessage('ErrorMsg', json['resultText'], 6000);
			}
			else {
			onSuccessFunc(json['resultHtml']);
			showMessage('OKMsg', json['resultText'], 6000);
			}
			}
			});
			}

			function initAJAX() {
			$.ajaxSetup(
			{ cache: false,
			dataType: 'json',
			error: onError,
			type: 'POST'
			}
			);
			}

			function positionMenu(){
			/*
			* Dynamically position menu based on vertical scroll distance.
			*/
			var newYscroll = $(document).scrollTop();
			// Only care if there has been some major scrolling.
			if (Math.abs(newYscroll - positionMenu.yScroll) > 10){
			// If scroll distance is less then 200px, position menu in sufficient
			// distance from header.
			if (newYscroll < 200)
			$('#bibMergePanel').animate({
			'top': 220 - newYscroll}, 'fast');
			// If scroll distance has crossed 200px, fix menu 50px from top.
			else if (positionMenu.yScroll < 200 && newYscroll > 200)
			$('#bibMergePanel').animate({
			'top': 50}, 'fast');
			positionMenu.yScroll = newYscroll;
			}
			}
			// Last Y-scroll value
			positionMenu.yScroll = 0;

			function notImplemented() {
			showMessage('ErrorMsg', 'Please ask the developer to hurry up and implement this feature!', 6000);
			return false;
			}
			function onError(XHR, textStatus, errorThrown) {
			panelDisabled(false);
			$('#bibMergeContent').html('Request completed with status ' + textStatus
			+ '\nResult: ' + XHR.responseText
			+ '\nError: ' + errorThrown);
			}
			function getFieldTag(fieldGroupDiv) {
			return fieldGroupDiv.children(":first-child").children(":first-child").text();
			}

			function onclickLinkToBibEdit1() {
			if (gHash!='' && gRecID1!=null)
			window.location = '/record/edit/#state=edit&recid='+gRecID1;
			else
			showMessage('ErrorMsg', 'A valid record id must be selected', 6000);
			return false;
			}
			function onclickLinkToBibEdit2() {
			if (gHash!='' && gRecord2Mode=='recid' && gRecID2!=null)
			window.location = '/record/edit/#state=edit&recid='+gRecID2;
			else
			showMessage('ErrorMsg', 'A valid record id must be selected', 6000);
			return false;
			}

			function panelDisabled(disabled) {
			if (disabled == true)
			$('#bibMergePanel').find('button, input, optgroup, option, select, textarea').attr('disabled', true);
			else
			$('#bibMergePanel').find('button, input, optgroup, option, select, textarea').removeAttr('disabled');
			}