// JScript 文件
function _$(id)
{
    return document.getElementById(id)
}
//是否为空
function isNull(str)
{
   if(str=="")
   {
        return true; 
    }
   else
    {
        return false;
    }    
}
//加入收藏夹
function addFav(url,name)
{
   window.external.addFavorite(url,name);
}
//设为首页
function setHome(url)
{
   document.body.style.behavior="url(#default#homepage)";
   document.body.setHomePage(url);
}
//刷新父窗口并关闭当前窗口
function closeAddReloadPage()
{
    window.opener.location.reload();
    window.opener=null;
    window.open("","_self"); 
    window.close();   
}
//刷新父窗口
function reloadParentPage()
{
    window.opener.location.reload();
}
//刷新窗口
function reloadPage()
{
    window.top.location.reload();
}
//关闭窗口
function closeThisPage()
{
    window.opener=null;
    window.open("","_self"); 
    window.close();   
}
//定向网页
function gotoPage(str)
{
    window.top.location=str;
}
//后退
function goBack()
{
    window.history.back();
}
//前进
function goAhead()
{
    window.history.forward();
}
//确认
function isCheck(str)
{
    if (confirm(str)) 
    {
        return true; 
    }
    else 
    {
        return false;
    }
}
//验证电话号码
function isTel(str)
{
    var reg =/^(([0\+]\d{2,3}-)?(0\d{2,3})-)(\d{7,8})(-(\d{3,}))?$/;
    if(reg.test(str))
    { 
        return true; 
    }
    else
    { 
        return false; 
    } 
}