//set search box to nothing on first focus.
var sValue;
function clearSearch(sValue){
	if(!sValue._haschanged){
  	sValue.value=''
	};
	sValue._haschanged=true;
}

//open external links in new window
function externalLinks() {
	PrepareAllLinks("wrapper");
}

function PrepareAllLinks(alink) {
  var links, i;
  if (document.getElementById(alink)) {
    links=document.getElementById(alink).getElementsByTagName("a");
  	for(i=0;i<links.length;i++) Prepare(links[i]);
  }
}

function Prepare(alink){
	var t;
  	t=alink.className;
  	if (t == "extLink" ) {
	  alink.setAttribute("target","_blank");
	  alink.innerHTML += ' <span class="accessibility">(opens new window)</span>';
	}
}

window.onload = externalLinks;