function chgMenu(arg,url){
	if(document.getElementById("ul1")!=null){
		document.getElementById("ul1").style.display="none";
	}
	if(document.getElementById("ul2")!=null){
		document.getElementById("ul2").style.display="none";
	}
	if(document.getElementById("ul3")!=null){
		document.getElementById("ul3").style.display="none";
	}
	if(document.getElementById("ul4")!=null){
		document.getElementById("ul4").style.display="none";
	}
	if(document.getElementById("ul5")!=null){
		document.getElementById("ul5").style.display="none";
	}
	if(document.getElementById("ul6")!=null){
		document.getElementById("ul6").style.display="none";
	}
	if(document.getElementById("ul7")!=null){
		document.getElementById("ul7").style.display="none";
	}
	if(document.getElementById("ul8")!=null){
		document.getElementById("ul8").style.display="none";
	}

	document.getElementById(arg).style.display="block";
	if(arg=="ul1"){
		document.getElementById("main").style.display="block";
		document.getElementById("if").style.display="none";
	}else{
		document.getElementById("main").style.display="none";
		document.getElementById("if").style.display="block";
	}
	if(url=='/gtjafzjg/zj/vote.jsp'){
		window.history.back();
		window.open('/gtjafzjg/zj/vote.jsp');
	}else if(url=='http://www.junhongclub.com'){
		window.history.back();
		window.open('http://www.junhongclub.com');
	}else if(url=='http://www.gtja.com/help/index.jsp'){
		document.getElementById("main").style.display="block";
		document.getElementById("if").style.display="none";
	}else{
		document.getElementById("ifmain").src = url;
	}
}

var FFextraHeight = 0;
if(window.navigator.userAgent.indexOf("Firefox")>=1)
{
 FFextraHeight = 16;
}
function reSizeiFrame(iframe)
{
	if(iframe && !window.opera){
		iframe.style.display = "block";
		if(iframe.contentDocument && iframe.contentDocument.body.offsetHeight){
			iframe.height = iframe.contentDocument.body.offsetHeight + FFextraHeight;
		}else if (iframe.Document && iframe.Document.body.scrollHeight){
			iframe.height = iframe.Document.body.scrollHeight;
		}
	}
}

// 北京菜单特殊处理
function MM_findObj(n, d) { //v4.01
	var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
	d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
	if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
		for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
			if(!x && d.getElementById) x=d.getElementById(n); return x;
}
		
function MM_showHideLayers() { //v6.0
	var i,p,v,obj,args=MM_showHideLayers.arguments;
	for (i=0; i<(args.length-2); i+=3)
		if ((obj=MM_findObj(args[i]))!=null){
			v=args[i+2];
			if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v=='hide')?'hidden':v; }
			obj.visibility=v;
		}
}

function selectTag(showtagId,num){
	for(i=1; i<=num; i++){
		var tag = document.getElementById("yjdh"+i);  //获得切换的id
		var tab = document.getElementById("bjnav"+i); //表格切换的id
		if (i==showtagId){
			tab.style.display = "block";   //正确的话显示
		}else{
			tab.style.display = "none";   //不正确时隐藏
		}
	} 
}

function selectTag2(showtagId,num){
	for(i=1; i<=num; i++){
		var tag = document.getElementById("yjdh"+i);  //获得切换的id
		var tab = document.getElementById("bjnav"+i); //表格切换的id
		if (i==showtagId){
			tab.style.display = "none";   //正确的话隐藏
		}
	} 
}