function add(obj)
{
    var nu = 0;
    var ops = "";
    var checkedObj = $("input[name='q_"+ obj +"']:checked").each(function(i,n)
    {
        nu++;
        var isCheck = $(this).val();
        if(ops=="")
        {
            ops += isCheck;
        }
        else
        {
            ops += ','+isCheck;
        }
    }
    );
    
    if(nu < 1)
    {
        alert('请选择选项');
        return false;
    }
    else
    {
        var now = new Date();
        var num = Math.random() * now.getSeconds();
        var weburl = "Vote.aspx?Action=vote&VID="+obj+"&VOID="+ ops +"&Random="+num;
        var xmlhttp = jb();
	    xmlhttp.open("get",weburl,true);
	    xmlhttp.onreadystatechange=function()
	    {
	        if(xmlhttp.readyState==4)
	        {
	            var result = xmlhttp.responseText;
		        if(result == "1")
                {
                    if(confirm('投票成功,现在查看投票结果'))
                    {
                        this.location.href='/VoteResult.aspx?id='+obj;
                    }                    
                    return true;
                }
                else
                {
                    alert('已经投过票');
                    return false; 
                }
             }
        }
        xmlhttp.send(null);
    }    
}

function jb()
{
    var A=null; 
    try 
    { 
	    A=new ActiveXObject("Msxml2.XMLHTTP"); 
	    } 
    catch(e)
    { 
	    try 
	    { 
		    A=new ActiveXObject("Microsoft.XMLHTTP"); 
	    }
    catch(oc)
    { 
		    A=null 
	    } 
    } 
    if ( !A && typeof XMLHttpRequest != "undefined" ) 
    { 
    A=new XMLHttpRequest() 
    } 
    return A 
}