// JavaScript Document

var newwindow;
var wheight = 0, wwidth = 0;
function popImage(url, title, iwidth, iheight) {
	var pwidth, pheight;
	var colour="black";
	
	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();
}

// Routines to tidy up popup windows when page is left
// Call with an onUnload="tidy5()" in body tag
function tidy() {
	if (newwindow && !newwindow.closed) { newwindow.close(); }
}