// JavaScript Document
window.onload = externalLinks;

/**
 * With this function, simply add the attribute: rel="external" to the href tag for window popups
 */
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.onclick = function() {return launchWindow(this.href)}		
	 }
 } 
}

/**
 * @param string href to open in new window
 */
function launchWindow(href) {		
	if(href=="" || !href)
		return;
	window.open(href);
	return false;
}

/**
* clears the top right search form when it's focus is set
*/
function clearSearchbox(){
	var s = document.getElementById('searchForm');
  	if(s.search_field.value == "Search "){
		s.search_field.value = "";
	}
}