function addEvent(obj, evType, fn, useCapture) {
	if (obj.addEventListener) {
		obj.addEventListener(evType,fn,useCapture);
		return true;
	} else if(obj.attachEvent){
		return obj.attachEvent("on"+evType,fn);
	} else {
		return false;
	}
}

function getElementsByClass(searchClass,node,tag) {

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

function getElementsByClass_1(searchClass,node,tag) {
	var a = getElementsByClass(searchClass,node,tag);
	return a[0];
}


if(!document.getElementById) document.getElementById=function(id) {
	eval('document.all.'+id)
}

function get1ElementByTag(tag, node){
	var tags = node.getElementsByTagName(tag);
	return tags[0];
}