var width = 500;
var height = 500;
var tw = 0;
var lw = 0;
var wint = 'file';
var netx = 0;
var iex = 0;
var nety = 0;
var iey = 0;

function popupImageWindow(url, wint, tw, lw, width, height) {
netx = 150 + lw;
nety = 150 + tw;
iex = 50 + lw;
iey = 50 + tw;

    window.open(url,wint,'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes,copyhistory=no,width=' + width + ',height=' + height + ',screenX=' + netx + ',screenY=' + nety + ',top=' + iex + ',left=' + iey + '');

}



function parentchange(url){

    window.opener.location.href = url;

}