//---------Get url params for download  button -----------

function GetQueyStringParams(str)
{    
     var btnDownload = document.getElementById('btnDownload');
     var btnDownload2 = document.getElementById('btnDownload2');
    
     var vc = queryString("vc") ; 
     var username =  queryString("username") ;
     var mail =  queryString("mail") ; 
     var roomid =  queryString("roomid") ;  
     var strWithQueryParams ="" ;
      
     if (vc!="" && vc!=undefined )
     {
        if (strWithQueryParams=="")
            {
               strWithQueryParams="vc=" + vc ; 
            }
            else            
            {
               strWithQueryParams+="&vc=" + vc ; 
            }
     }
     
     if (username!="" &&  username!=undefined)
     {
            if (strWithQueryParams=="")
            {
                strWithQueryParams="username=" + username ; 
            }
            else            
            {
                strWithQueryParams+="&username=" + username ; 
            }
     }
     
     if (mail!="" && mail!=undefined )
     {
        if (strWithQueryParams=="")
            {
               strWithQueryParams="mail=" + mail ; 
            }
            else            
            {
               strWithQueryParams+="&mail=" + mail ; 
            }
     } 
     
     if (roomid!="" && roomid!=undefined )
     {
        if (strWithQueryParams=="")
            {
               strWithQueryParams="roomid=" + roomid ; 
            }
            else            
            {
               strWithQueryParams+="&roomid=" + roomid ; 
            }
     } 
     
     if (str!="" && str!=undefined)
     {
         if (strWithQueryParams=="")
            {                
                 strWithQueryParams="ban=" + str ; 
            }
            else            
            {                
                strWithQueryParams+="&ban=" + str ; 
            }        
     }
     
     try
     {
     
     if (banner!="" && banner!=undefined && strWithQueryParams.indexOf("ban",0) < 0)
     {
         if (strWithQueryParams=="")
            {                
                 strWithQueryParams="ban=" + banner ; 
            }
            else            
            {                
                strWithQueryParams+="&ban=" + banner ; 
            }        
     }
     }
     catch(e){}
     
     
     if (btnDownload!=null)
     {
        
        if (strWithQueryParams!="")
            {
                btnDownload.href = "Download.aspx?" + strWithQueryParams ; 
            }
            else
            {   
                btnDownload.href = "Download.aspx";
            }
            
     }
     
     if (btnDownload2!=null)
     {       
        if (strWithQueryParams!="")
            {
                btnDownload2.href = "Download.aspx?" + strWithQueryParams ; 
            }
            else
            {   
                btnDownload2.href = "Download.aspx";
            }            
     }
 	
}

function queryString(parameter) 
{ 
  
    hu = window.location.search.substring(1);    
    gy = hu.split("&");
    
    for (i = 0; i < gy.length; i++)
    {
        ft = gy[i].split("=");
		
        if (ft[0] == parameter )        
        {
           return ft[1] ; 
        }
     }      
}

onload = function()
{
    GetQueyStringParams();    
}

//---------Get url params for download  button -----------