//视频的切换
function videoTab(id){
	for (var i=1;i<=4;i++) {
		document.getElementById("video"+i+"_box").style.display="none";
		document.getElementById("video"+i).className="none";
		if (i==id) {
			document.getElementById("video"+i+"_box").style.display="block";
			document.getElementById("video"+i).className="mouseMover";
		}
	}
}
//仿YAHOO的切换
function hallTab(id){
	for (var i=1;i<=6;i++) {
		document.getElementById("hall"+i+"_box").style.display="none";
		document.getElementById("hall"+i).className="none";
		if (i==id) {
			document.getElementById("hall"+i+"_box").style.display="block";
			document.getElementById("hall"+i).className="mouseMover";
		}
	}
}//首页左面底部切换TAB
function ltbotmTab(id){
	for (var i=1;i<=4;i++) {
		document.getElementById("ltbotm"+i+"_box").style.display="none";
		document.getElementById("ltbotm"+i).className="none";
		if (i==id) {
			document.getElementById("ltbotm"+i+"_box").style.display="block";
			document.getElementById("ltbotm"+i).className="mouseMover"+i;
		}
	}
}