// toggles div display and plus/minus sign images

function toggleDisplay(trid, imgid) {
	var objDiv = document.getElementById(trid);
	var objImg = document.getElementById(imgid);	
	if (objDiv.style.display=="none") {
		objDiv.style.display="";
		objImg.src="/images/minus.gif";
	} else {
		objDiv.style.display="none";
		objImg.src="/images/plus.gif";
	}
}



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("rele") == "external")
     anchor.target = "_blank";
 }
}
window.onload = externalLinks;