/***********************
 @ 实现首页页面跳转的
 @ 建立日期:2009-05-31 11:49
 @ 编写者  :chen
************************/

/***********************
 @ 函数名:jumpto
 @ 功  能:通过判断传入的参数跳转到相应的页面
 @ 参  数:ac---行为  path---相对路径
 @ 返  回:无
************************/
function jumpto(ac,path)
{
	var des = "";
	switch(ac){
		case "_login_":
			des = "login.php";
			break;
		case "_online_":
		    des = "";
		    break;
		case "_help_":
			des = "";
			break;
		case "_register_":
			des = "register.php";
			break;
			case "_index_":
		    des = "index.php";
			break;
		case "_supply_":
		    des = "supply.php";
			break;
		case "_product_":
		    des = "lectotype.php";
			break;
		case "_zhanhui_":
		    des = "pv_zhanhui.php";
			break;
		case "_zixun_":
		    des = "pv_zixun.php";
			break;
		case "_business_":
		    des = "commerce.php";
			break;
		default:
		    break;			
	}
	document.getElementById(ac).href = path + des;
}

function correctPNG() // correctly handle PNG transparency in Win IE 5.5 & 6. 
{ 
    var arVersion = navigator.appVersion.split("MSIE") 
    var version = parseFloat(arVersion[1]) 
    if ((version >= 5.5) && (document.body.filters)) 
    { 
       for(var j=0; j<document.images.length; j++) 
       { 
          var img = document.images[j] 
          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 
             j = j-1 
          } 
       } 
    }     
} 

function show(obj1,obj2)
{
    document.getElementById(obj1).style.display = "block";
	document.getElementById("li_"+obj1).className = "isactive";
	document.getElementById(obj2).style.display = "none";
	document.getElementById("li_"+obj2).className = "";
	
	
}