window.addEvent('domready', function() { 
	$$('div.ct_bild_2_spaltig a[rel*=lightbox] img').addEvents({
    		'mouseover': function(){
				this.setProperty('tmpsrc',this.src);
		//alert(this.getParent('div').getElement('img[overimg=true]').src);
				this.src = this.getParent('div').getElement('img[overimg=true]').src;
	
			},
			'mouseleave': function(){
				this.src = this.getProperty('tmpsrc');
			}
	});
});