function addLoadListener(fn) {
	if (typeof window.addEventListener != 'undefined') {
		window.addEventListener('load', fn, false);
	}
	else if (typeof document.addEventListener != 'undefined') {
		document.addEventListener('load', fn, false);
	}
	else if (typeof window.attachEvent != 'undefined') {
		window.attachEvent('onload', fn);
	}
	else {
		var oldfn = window.onload;
		if (typeof window.onload != 'function') {
			window.onload = fn;
		}
		else {
			window.onload = function() {
				oldfn();
				fn();
			}
		}
	}
}

function attachEventListener(target, eventType, functionRef, capture) {
	if (typeof target.addEventListener != "undefined") {
		target.addEventListener(eventType, functionRef, capture);
	}
	else if (typeof target.attachEvent != "undefined") {
		target.attachEvent("on" + eventType, functionRef);
	}
	else {
		eventType = "on" + eventType;
		if (typeof target[eventType] == "function") {
			var oldListener = target[eventType];
			target[eventType] = function() {
				oldListener();
				return functionRef();
			}
		}
		else {
			target[eventType] = functionRef;
		}
	}
}

function getElementsByClassOld(searchClass,node,tag) {
	var classElements = new Array();
	if ( node == null ) {
		node = document;
	}
	if ( tag == null ) {
		tag = '*';
	}
	var els = node.getElementsByTagName(tag);
	var elsLen = els.length;
	var pattern = new RegExp("(^|\\s)"+searchClass+"(\\s|$)");
	for (i = 0, j = 0; i < elsLen; i++) {
		if ( pattern.test(els[i].className) ) {
			classElements[j] = els[i];
			j++;
		}
	}
	return classElements;
}

function getElementsByClass(node,searchClass,tag) {
	var classElements = new Array();
	var els = node.getElementsByTagName(tag); // use "*" for all elements
	var elsLen = els.length;
	var pattern = new RegExp("\\b"+searchClass+"\\b");
	for (i = 0, j = 0; i < elsLen; i++) {
		if ( pattern.test(els[i].className) ) {
			classElements[j] = els[i];
			j++;
		}
	}
	return classElements;
}

function getElementsByTagNames(list,obj) {
/*
	getElementsByTagNames takes two arguments:

   1. A string with a comma-separated list of tag names.
   2. An optional start element. If it's present the
      script searches only for tags that are descendants
      of this element, if it's absent the script searches
      the entire document.
   From QuirksMode.org, the personal site of Peter-Paul Koch
*/
	if (!obj) var obj = document;
	var tagNames = list.split(',');
	var resultArray = new Array();
	for (var i=0;i<tagNames.length;i++) {
		var tags = obj.getElementsByTagName(tagNames[i]);
		for (var j=0;j<tags.length;j++) {
			resultArray.push(tags[j]);
		}
	}
	var testNode = resultArray[0];
	if (!testNode) return [];
	if (testNode.sourceIndex) {
		resultArray.sort(function (a,b) {
				return a.sourceIndex - b.sourceIndex;
		});
	}
	else if (testNode.compareDocumentPosition) {
		resultArray.sort(function (a,b) {
				return 3 - (a.compareDocumentPosition(b) & 6);
		});
	}
	return resultArray;
}


function clearSelectList(id) {
    var eSelect = document.getElementById(id);
    while (eSelect.length > 0) {
        eSelect.remove(0);
    }
}

function getNodeText(node) {
	var nodeText = "";

	var child = node.firstChild;
	while (child) {
		if (child.nodeType == 1 ) /* element */
			nodeText += getNodeText(child);
		else if (child.nodeType == 3 ) /* text */
			nodeText += child.data;
		else if (child.nodeType == 4) /* CDATA */
			nodeText += child.data;
		child = child.nextSibling;
	}
	return nodeText;
}