//弹出窗口
function Ewin(file,w,h,r,s){
    window.open(file,'','resizable='+r+',width='+w+",height="+h+',scrollbars='+s+',left='+(screen.availWidth-w)/2+',top='+(screen.availHeight-h)/2);
}


//判断是否为空
function MM_popupMsg(msg) { //v1.0
  alert(msg);
}

//设备展示
function showimage(u,c){
document.images.tus.src=u;
}

//产品标签
var prev;
function proCon(obj){
	//隐藏前一个
	if(prev!=null){
		document.getElementById("con"+prev).style.display="none";
		document.getElementById("m"+prev).className="proBnt";
	}
	
	//显示这一个
	document.getElementById("con"+obj).style.display="block";
	document.getElementById("m"+obj).className="proBntA";
	
	prev=obj;
}