function unitLinks() {
	if(!document.getElementsByTagName) return false;
	
	var anchor = document.getElementsByTagName("a");
	var anchorCnt = anchor.length;
	
	for(var i=0; i<anchorCnt; i++) {
		var anchors = anchor[i];
		var anchorsRel = anchors.getAttribute("rel");
		
		if(anchorsRel == "exLink") {
			anchors.setAttribute("target","_blank");
		}
	}
}

addLoadEvent(unitLinks);