//防止错误出现
function killErrors() {
return true;}
window.onerror = killErrors;
//无缝滚动
function Marquee(){
	if(tunews2.offsetTop-picnews.scrollTop<=0) {
		picnews.scrollTop-=tunews.offsetHeight
	} else {
		picnews.scrollTop++
	}
}
//栏目
function mouseOver(obj,img)
{
	document.getElementById(obj).src ="../images/menu_"+img+"_02.jpg"
}
function mouseOut(obj,img)
{
	document.getElementById(obj).src ="../images/menu_"+img+".jpg"
}
//放大和缩小字体
function doZoom(size){ 
var obj=document.getElementById("list");
obj.style.fontSize=size+"px";
}