form_is_dirty.js
d8d6d22bf6d1master

form_is_dirty.js
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			/**
			* Determines if a form is dirty by comparing the current value of each element
			* with its default value.
			*
			* @param {Form} form the form to be checked.
			* @return {Boolean} <code>true</code> if the form is dirty, <code>false</code>
			* otherwise.
			*/
			formIsDirty = function formIsDirty(form) {
			for (var i = 0; i < form.elements.length; i++) {
			var element = form.elements[i];
			var type = element.type;
			if (type == "checkbox" \|\| type == "radio") {
			if (element.checked != element.defaultChecked) {
			return true;
			}
			}
			else if (type == "hidden" \|\| type == "password" \|\|
			type == "text" \|\| type == "textarea" \|\|
			type == "number" ) {
			if (element.value != element.defaultValue) {
			return true;
			}
			}
			else if (type == "select-one" \|\| type == "select-multiple") {
			for (var j = 0; j < element.options.length; j++) {
			if (element.options[j].selected !=
			element.options[j].defaultSelected) {
			return true;
			}
			}
			}
			}
			return false;
			}