	<!--
		function curso(mylink, windowname, refocus)
		{
		 	var mywin, href;

			if (typeof(mylink) == 'string')
   			   href=mylink;
			else
   			   href=mylink.href;
			mywin = window.open('', windowname, 'width=300,height=200,scrollbars=no,left=478,top=100');

			if (mywin.closed || (! mywin.document.URL) || (mywin.document.URL.indexOf("about") == 0))
   			   mywin.location=href;
			else if (refocus)
   				 mywin.focus();
				 return false;
		}
	//-->