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";
 }
}

function changeClass(en,cn) {
if(!document.getElementById) return;
var element = document.getElementById(en);	
	element.className = cn;
}


function swapContent(elID) {
	switch (elID) {
		case 'persecondewijzer':
			var content = '<object width=\'250\' height=\'164\' data=\'http://www.youtube.com/v/Loo83XKB7yM&amp;hl=en&amp;fs=1&amp;rel=0&amp;autoplay=1\' type=\'application/x-shockwave-flash\'><param name=\'allowFullScreen\' value=\'true\' /><param name=\'allowscriptaccess\' value=\'always\' /><param name=\'src\' value=\'http://www.youtube.com/v/Loo83XKB7yM&amp;hl=en&amp;fs=1&amp;rel=0&amp;autoplay=1\' /><param name=\'allowfullscreen\' value=\'true\' /></object>'
			break;
		case 'woudstraschoenmode':
			var content = '<object width=\'250\' height=\'206\' data=\'http://www.youtube.com/v/0MbZyEUQt70&amp;autoplay=1\' type=\'application/x-shockwave-flash\'><param name=\'src\' value=\'http://www.youtube.com/v/0MbZyEUQt70&amp;autoplay=1\' /></object>';
			break;
		case 'omropfryslan':
			var content = '<object width="250" height="203" data="http://www.byfrank.nl/flash/flvplayer.swf?file=byfrank_240.flv&amp;autostart=true&amp;image=flash/tvspot.jpg" wmode="transparent" type="application/x-shockwave-flash"><param value="http://www.byfrank.nl/flash/flvplayer.swf?file=byfrank_240.flv&amp;autostart=true&amp;image=flash/tvspot.jpg" name="movie"/><param value="transparent" name="wmode"></param></object>';
			break;
	}
	
	var el = document.getElementById(elID);
	el.innerHTML = content;
}

window.onload = function(){ 
  externalLinks()
  }