		var newwindow;
		var wheight = 0, wwidth = 0;
		function imagewin(url, title, iwidth, iheight, colour) {
		var pwidth, pheight;
		
		if (!newwindow || newwindow.closed) {
		pwidth=iwidth+30;
		pheight=iheight+30;
		newwindow=window.open('','htmlname','width=' + pwidth +',height=' +pheight + ',resizable=1,top=50,left=10');
		wheight=iheight;
		wwidth=iwidth;
		}
		
		if (wheight!=iheight || wwidth!=iwidth) {
		pwidth=iwidth+30;
		pheight=iheight+60;
		newwindow.resizeTo(pwidth, pheight);
		wheight=iheight;
		wwidth=iwidth;
		}
		
		newwindow.document.clear();
		newwindow.focus();
		newwindow.document.writeln('<html> <head> <title>' + title + '<\/title> <\/head> <body bgcolor= \"' + colour + '\"> <center>');
		newwindow.document.writeln('<img src=' + url + '>');
		newwindow.document.writeln('<\/center> <\/body> <\/html>');
		newwindow.document.close();
		newwindow.focus();
		}
		
		function cleanup() {
		if (newwindow && !newwindow.closed) { newwindow.close(); }
		}

