function showdaohang(index){
	document.getElementById("dh"+index).src="images/daohang"+index+".jpg";
	document.getElementById("li"+index).className="daohang-li1";
	document.getElementById("ul"+index).style.display="block";
	
}
function outdaohang(index){
	document.getElementById("dh"+index).src="images/dh"+index+".jpg";
	document.getElementById("li"+index).className="daohang-li2";
	document.getElementById("ul"+index).style.display="none";
}


function showdaohang2(index){
	document.getElementById("dh"+index).src="images/daohang"+index+".jpg";
	document.getElementById("li"+index).className="daohang-li1";
	document.getElementById("ul"+index).style.display="block";
	
}
function outdaohang2(index){
	document.getElementById("dh"+index).src="images/dh"+index+".jpg";
	document.getElementById("li"+index).className="daohang-li2";
	document.getElementById("ul"+index).style.display="none";
}

function showdaohang3(index){
	document.getElementById("dh"+index).src="images/daohang"+index+".jpg";
	document.getElementById("li"+index).className="daohang-li1";
}
function outdaohang3(index){
	document.getElementById("dh"+index).src="images/dh"+index+".jpg";
	document.getElementById("li"+index).className="daohang-li2";
}

function more(index){
	document.getElementById("gengduo"+index).src="images/more2.gif";
	
}
function moreout(index){
	document.getElementById("gengduo"+index).src="images/more1.jpg";
}

function yxcont(index){
	document.getElementById("yxdh"+index).src="images/yx-dh"+index+".jpg";
	for(var i=1;i<7;i++)
	{
		if(index==i)
		{
			document.getElementById("content"+i).style.display="";
			
		}
		else
		{
			document.getElementById("content"+i).style.display="none";
			
		}
	}
}
function yxcontdout(index){
	document.getElementById("yxdh"+index).src="images/yx-daohang"+index+".jpg";
	
}


function correctPNG() 
{ 
	　for(var i=0; i<document.images.length; i++) 
	　{ 
		　 var img = document.images[i] 
		　 var imgName = img.src.toUpperCase() 
		　 if (imgName.substring(imgName.length-3, imgName.length) == "PNG") 
		　 { 
			　 var imgID = (img.id) ? "id='" + img.id + "' " : "" 
			　 var imgClass = (img.className) ? "class='" + img.className + "' " : "" 
			　 var imgTitle = (img.title) ? "title='" + img.title + "' " : "title='" + img.alt + "' " 
			　 var imgStyle = "display:inline-block;" + img.style.cssText 
			　 if (img.align == "left") imgStyle = "float:left;" + imgStyle 
			　 if (img.align == "right") imgStyle = "float:right;" + imgStyle 
			　 if (img.parentElement.href) imgStyle = "cursor:hand;" + imgStyle 
			　 var strNewHTML = "<span " + imgID + imgClass + imgTitle 
			　 + " style=\"" + "width:" + img.width + "px; height:" + img.height + "px;" + imgStyle + ";" 
			　 + "filter:progid:DXImageTransform.Microsoft.AlphaImageLoader" 
			　 + "(src=\'" + img.src + "\', sizingMethod='scale');\"></span>" 
			　 img.outerHTML = strNewHTML 
			　 i = i-1 
		　 }; 
	　}; 
}; 
if(navigator.userAgent.indexOf("MSIE")>-1) 
	{ 
		window.attachEvent("onload", correctPNG); 
	};