<script>
function position_window(n,w,h) {
var sAvailH = screen.availHeight;
var sAvailW = screen.availWidth;
n.window.moveTo( (sAvailW/2)-(w/2), (sAvailH/2)-(h/2));
}
function openw(url,name,width,height) {
val = "resizable=yes, scrollbars=no, menubar=no, toolbar=no, status=no, height="+height+", width="+width;
winpops=window.open(url, name, val);
position_window(winpops,width,height);
}
</script>
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<a href="#" OnClick="openw('file.html','win',250-ширина,389-высота)"><img src="image.jpg" alt="" width="123" height="123" border="0"></a>