// Function to allow multiple onload functions to be called
function multipleOnload()
{
  externalLinks();
}
window.onload = multipleOnload;

// Open External links in new window
// Found here: http://www.sitepoint.com/article/standards-compliant-world/3
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;
//-->

//Hide / Show Divs

function hidediv(d) { document.getElementById(d).style.display = "none"; }
function showdiv(d) { document.getElementById(d).style.display = "block"; }

//CSS/Javascript popup windows

function toggleLayer( whichLayer )
{
  var elem, vis;
  if( document.getElementById ) // this is the way the standards work
    elem = document.getElementById( whichLayer );
  else if( document.all ) // this is the way old msie versions work
      elem = document.all[whichLayer];
  else if( document.layers ) // this is the way nn4 works
    elem = document.layers[whichLayer];
  vis = elem.style;
  // if the style.display value is blank we try to figure it out here
  if(vis.display==''&&elem.offsetWidth!=undefined&&elem.offsetHeight!=undefined)
    vis.display = (elem.offsetWidth!=0&&elem.offsetHeight!=0)?'block':'none';
  vis.display = (vis.display==''||vis.display=='block')?'none':'block';
}