function showbg(layname,lay,classname,nums)
{
		for(i=1;i<=nums;i++)
		{
			if(eval("document.getElementById('"+layname+i+"')")!=null) eval("document.getElementById('"+layname+i+"').className=\""+classname+"1\";");
			if(eval("document.getElementById('"+layname+"s"+i+"')")!=null) eval("document.getElementById('"+layname+"s"+i+"').style.display=\"none\";");
			if(lay==i)
			{
				if(eval("document.getElementById('"+layname+i+"')")!=null) eval("document.getElementById('"+layname+i+"').className=\""+classname+"2\";");
				if(eval("document.getElementById('"+layname+"s"+i+"')")!=null) eval("document.getElementById('"+layname+"s"+i+"').style.display=\"block\";");				
			}
		}
}

function copyToClipBoard() 
{ 
 var clipBoardContent=window.document.title; 
 clipBoardContent+='\r\n' + window.document.location.href; 
 window.clipboardData.setData("Text",clipBoardContent); 
 alert("复制成功，请粘贴到你的QQ/MSN上推荐给你的好友！\r\n\r\n内容如下：\r\n" + clipBoardContent); 
}

///浏览历史记录用 start 
function getCookieVal (offset)
{ 
 var endstr = document.cookie.indexOf (";", offset); 
 if (endstr == -1) endstr = document.cookie.length; 
    return unescape(document.cookie.substring(offset, endstr)); 
 } 
       
function getCookie(name)
{
    var arg = name + "="; 
    var alen = arg.length; 
    var clen = document.cookie.length; 
    var i = 0; 
    while (i < clen) 
    { 
        var j = i + alen; 
        if (document.cookie.substring(i, j) == arg) 
            return getCookieVal (j); 
        i = document.cookie.indexOf(" ", i) + 1; 
        if (i == 0) 
            break; 
    } 
    return null; 
 } 
function setCookie (name, value) 
{ 
    var exp = new Date(); 
    exp.setTime (exp.getTime()+3600000000); 
    document.cookie = name + "=" + value + "; expires=" + exp.toGMTString() + "; path=/"; 
}
//删除cookie
function delCookie(name)
{
    var exp = new Date();
    exp.setTime(exp.getTime() - 1);
    var cval=getCookie(name);
    if(cval!=null) 
    {
        document.cookie= name + "=" + cval + "; expires="+exp.toGMTString() + "; path=/";
    }
    document.getElementById("history").innerHTML="";
    //history_show().reload(); //这样写在JSP页面中测试没有错误，为了方便大家调试我就改成HTML了
}
////////////////////////////////////

    
function addhistory(text,addr)
{
    try
    {
                linkname=text;
                address=addr+"&&";
                wlink=linkname+"+"+address; 
                old_info=getCookie("history_info");
                var insert=true;
                ////////////////////////
                if(old_info==null)          //判断cookie是否为空
                {
                    insert=true;
                }
                else
                { 
                    var old_link=old_info.split("&&");
                    for(var j=0;j<=9;j++)
                    {
                        if(old_link[j].indexOf(linkname)!=-1)
							old_info=old_info.replace(wlink,"");
                        if(old_link[j]=="null")
                            break;
                    }
                }
                /////////////////////////////

               wlink+=old_info;
               setCookie("history_info",wlink);

    }
    catch(e){}
    return true;
}

//////////////////////////////////////////////////////////////////////////////// 
function history_show()
{   
 var history_info=getCookie("history_info");
 var content=""; 
 content="<ul class='hisnews'>"
 if(history_info!=null)
 {
        history_arg=history_info.split("&&");
        var i;
        for(i=0;i<=9;i++)
        {
            if(history_arg[i]!="null")
            {
              var wlink=history_arg[i].split("+");
              content+=("<li><img src='../images/w"+(i+1)+".gif' />"+" <a href='/product/"+wlink[1]+"' title='"+wlink[0]+"' target='_blank'>"+wlink[0]+"</a></li>");
            }
            else
            {
                break;
            }
        }
		content+="</ul>";
        document.getElementById("history").innerHTML=content;
    }
    else
    {
        document.getElementById("history").innerHTML="对不起，您没有任何浏览纪录";
    }
}
///浏览历史记录用 end 

///收藏函数
function scsite(m_addr,m_title)
{
	window.external.AddFavorite(m_addr,m_title);
}