function openPopup (url, name, w, h, resizable) {
       var resizable = resizable || 0;
       var opt = "toolbar=0,location=0,scrollbars="+resizable+",directories=0,status=0,menubar=0,resizable="+resizable+","
                           +"width="+w+",height="+h+",left="+parseInt((screen.width-w)/2)+",top="+parseInt((screen.height-h)/3);
       window.open(url, name, opt);
}

 

function printv () {
       openPopup ("print.aspx", "print", 600, 500, 1);
}