document.onkeydown = closewindowforesc;
        
function closewindowforesc(e) 
{
    var ev = window.event||e; 
    if( ev.keyCode == 27 )
    {
        try{top.GB_hide();}catch(e){}
    }	
    else if( ev.keyCode == 13 )
    {
        if( verify() )
        {
            var pbjs = $("#btnSubmit").attr("href");
            eval( pbjs );
        }
    }	
}