document.getElementsByClassName = function(cl) {
var retnode = [];
var myclass = new RegExp('\\b'+cl+'\\b');
var elem = this.getElementsByTagName('*');
for (var i = 0; i < elem.length; i++) {
var classes = elem[i].className;
if (myclass.test(classes)) retnode.push(elem[i]);
}
return retnode;
};
function toint(a){
	return parseInt(a,10);
}
var MX=0;
var MY=0;
function getMousePos(e) {
	if (document.layers||document.getElementById&&!document.all) {
		MX=e.pageX;
		MY=e.pageY;
	} else if (document.all) {
		MX=window.event.clientX;
		MY=window.event.clientY + getscoll();
	}
}
function getscoll(){
	if (document.documentElement && !document.documentElement.scrollTop){
		return document.documentElement.scrollTop;
	}
	else if (document.documentElement && document.documentElement.scrollTop){
		return document.documentElement.scrollTop;
	}else if (document.body && document.body.scrollTop){
		return document.body.scrollTop;
	}
}
if(!window.captureEvents) document.onmousemove=getMousePos
if (window.captureEvents) {
	window.captureEvents(Event.MOUSEMOVE)
	window.onmousemove=getMousePos
}
	function showtab(a){
	if ( a == 'news-other' ){
		document.getElementById('news-other').style.display='';
		document.getElementById('news-tips').style.display='none';
	} else {
		document.getElementById('news-tips').style.display='';
		document.getElementById('news-other').style.display='none';
	}
}
function showtab2(a){
	if ( a == 'news-student' ){
		document.getElementById('news-student').style.display='';
		document.getElementById('news-ad').style.display='none';
	} else {
		document.getElementById('news-ad').style.display='';
		document.getElementById('news-student').style.display='none';
	}
}
function show_message(m){
	document.getElementById("message_layer").innerHTML=m;
	document.getElementById("message_layer").style.display='';
	document.getElementById("message_layer").style.top=(MY+1)+'px';
	document.getElementById("message_layer").style.left=(MX+1)+'px';
	
}
function hide_message(){
	document.getElementById("message_layer").style.display='none';
}
function findPos(obj) {
	var curleft = curtop = 0;
	if (obj.offsetParent) {
	do {
			curleft += obj.offsetLeft;
			curtop += obj.offsetTop;
		} while (obj = obj.offsetParent);
	}
	return Array(curleft,curtop);
}