// JScript 文件

    //获取当前页面所在域名的 主域名 
    //e.g. Index.aspx在一级目录 和images 是同级目录 则调用此函数返回 空字符串
    //当当前页面是2级目录时 比images低一级 则返回 “../”
    function getRelativePath()
    {
    var url = location.href;//当前url
    var path = url.length - url.replace(/\//g,"").length - 4;

    //层次为url包含/的长度-没有包含/的长度再减去项目头/的个数(如:http://hi.baidu.com/zdz8207/)
    var str = "";
    for(var i = 0; i < path; i++)
    {
    str += "../";//组合成一个相对路径的字符串返回
    }
    return str;
    }

   //改变母版页内 html标签对应的图片相对路径
   function ChangeBackGround()
    {
     var relativePath = getRelativePath();
     var footBackGroundImagePath = "url(" + relativePath + "images/scirp/SRP_64.jpg)";
     var navigationBarPath = "url(" + relativePath + "fileOperation//ShowImage.aspx?path=SRP_03.jpg)";
     var loginPath = "url(" + relativePath + "images/scirp/SRP_06.jpg)";
     //alert(relativePath);
     document.getElementById("td_footBackGroundImage").style.backgroundImage = footBackGroundImagePath;
     document.getElementById("td_navigationBar").style.backgroundImage = navigationBarPath;
     document.getElementById("td_login").style.backgroundImage = loginPath;
    }
    

    
    
    //除去左右空格
    function trim(string)
    {
        return string.replace(/(^\s*)|(\s*$)/g, "");
    }
   
   function loadMessage() 
{ 
    result="Please sign in before download!" 
    var url = window.location.href;
    url = URLencode(url);
    
    if (confirm(result)) 
    { 
        window.location.href="../userInformation/Login.aspx?parameter=" + url; 
    } 
    else 
    { 
        window.location.href="#";
    } 
} 

function URLencode(sStr) 
{
    return escape(sStr).replace(/\+/g, '%2B').replace(/\"/g,'%22').replace(/\'/g, '%27').replace(/\//g,'%2F');
} 


function onlyNumbers()
{
if(!((event.keyCode>=48 && event.keyCode<=57)||(event.keyCode==8)))
{
event.returnValue=false;
}
}