function image_mouseover (image_name, image_alt, source_up, source_dn) 
	{
		document.write ("<img");
		document.write (" src=\""+ source_up + "\"");
		document.write (" name=\"" + image_name + "\" alt=\"" + image_alt + "\"");
		document.write (" onmouseover=\"document." + image_name + ".src='" + source_dn + "'\"");
		document.write (" onmouseout=\"document." + image_name + ".src='" + source_up + "'\"");
		document.write (">\n\n");

		document.write ("<div style=\"display:none;\">\n");
		document.write ("	<img src=\"" + source_up + "\" alt=\"Mouseover Caching\">\n");
		document.write ("	<img src=\"" + source_dn + "\" alt=\"Mouseover Caching\">\n");
		document.write ("</div>\n\n");
	}

	function div_conceal (this_div_id)
	{
		document.getElementById(this_div_id).style.display='none';
	}
	
	function div_reveal (this_div_id)
	{
		document.getElementById(this_div_id).style.display='block';
	}
	
	function frame_break ()
	{
		if(self!=top) 
		{
			url=self.location.href; 
	
			if(document.images) 
			{
				top.location.replace(url);
			} 
	
			else 
			{
				top.location.href=url; 
			}
		} 
	
		else 
		{ 
			self.focus(); 
		} 
	}