window.onload = function() {
	externalLinks();
    $('gesamt').style.height = window.getScrollHeight()+'px';
    
}



window.onunload = function(){
	  
}

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.addEvent('resize', function() {
	$('gesamt').style.height = window.getScrollHeight()+'px';						   
});


function changeNavBild(bild){
	document.getElementById('bildinnav').innerHTML = '<img src="'+bild+'" alt="" />';
}