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";
 }
}
window.onload = externalLinks;




function over(name){
	if (document.images) {
		document[name].src = eval(name + "over.src");
	}
}

function off(name){
	if (document.images) {
		document[name].src = eval(name + ".src");
	}
}

function displayProjectsByType(){

	location.href = "projects_full_list.php?projectType=" + document.forms[0].elements[0].options[document.forms[0].elements[0].selectedIndex].value;
	
}