поправка:
<script>
function popup(src, w, h, alt){
win=window.open("about
:blank", "picturePopup", 'resizable=no,menubar=no,status=no,scrollbars=no, top=200, left=220, width='+w+',height='+h);
win.document.writeln("<html><head><title>"+alt+"</title></head><body bgcolor='white' leftmargin=0 topmargin=0 marginwidth=0 marginheight=0 onClick='window.close();'><a href=#><img src=\""+src+"\" width=\""+w+"\" height=\""+h+"\" alt=\""+alt+"\"></a></body></html>");
win.focus();
}
</script>
<td width="25%"><div align="center"><a href="svadby-preview/svadb/17k.jpg" onclick="popup(this.href, 500, 250); return false;"><img src="svadby-preview/17kpr.jpg" width="142" height="106" border="0"></a></div></td>