function opFlash(file, w, h) {
	var ww = window.screen.availWidth/2;
	var wh = window.screen.availHeight/2;
	var cx = ww-(w/2);
	var cy= wh-(h/2);
	var popup = window.open( file, 'popup',
							'top='+cx+',left='+cy+',width='+w+',height='+h+',menubars=0,toolbar=0,scrollbars=0')
	popup.focus();
}

function externalLinks() {
	 if (!document.getElementsByTagName) return;
	 var anchors = document.getElementsByTagName("a");
	 for (var i=0; i<anchors.length; i++) {
	   var anchor = anchors[i];
	   if (anchor.getAttribute("href") &&
	       anchor.getAttribute("rel") == "external")
	     anchor.target = "_blank";
	 }
}