function preloadImages() {
	// var pfad = "/html_neu";
	var pfad = "";
	
	if (document.images){
		arImageSrc = new Array (
			"ausstatten.gif",
			"blasformen.gif",
			"erde.gif",
			"filamente.gif",
			"folienextrusion.gif",
			"fuellen.gif",
			"material.gif",
			"recycling.gif",
			"thermoformen.gif",
			"verschliessen.gif",
			"vorformlinge.gif",
			"punkt_over.gif"
		)
		arImageList = new Array ();
	
		for (counter in arImageSrc) {
	  		arImageList[counter] = new Image();
	  		arImageList[counter].src = pfad + '/images/competence/' + arImageSrc[counter];
			// alert(arImageList[counter].src);
	   }
	}
}

function chgIcon (icon) {
	// var pfad = "/html_neu";
	var pfad = "";
	if (icon == '') {
		var newicon = pfad + "/images/competence/erde.gif";
	}
	else {
		var newicon = pfad + "/images/competence/" + icon + ".gif";
	}
	window.document.getElementById('ws_inner').style['backgroundImage'] = 'url(\'' + newicon + '\')';
	window.document.getElementById('ws_inner').style['backgroundRepeat'] = 'no-repeat';
	window.document.getElementById('ws_inner').style['backgroundPosition'] = 'center center';
}