var chatWin = new Array();
var Strurl;
var focusOpenWindow = new Array();

function OpenChatWindow(UserID,UserName,Status,LoginUserName,AliasNm,afr)
{
    Strurl = 'chatuser.aspx?userId='
             + UserID + "&userName="
             + UserName + "&loginStatus="
             + Status + "&LoginUserName="
             + LoginUserName + "&anm="
             + AliasNm + "&afr=" 
             + afr ;

    if (chatWin[UserID]==null || chatWin[UserID].closed == true)
    {
        
    chatWin[UserID] = window.open(Strurl,'','toolbar=no,scrollbars=0,location=no,status=no,menubar=no,*resizable=0,titlebar=1,directories=no,dialog=yes,minimizable=yes, status=no,width=720,height=550'); 

    }
    else
    {   
        chatWin[UserID].focus();
    }
}