// Skript gleicht die Differenz der Mittleren Spalte zur längsten Randspalte aus

window.onload = function() { hoehe_angleichen(); };

function hoehe_angleichen(){
    var objCol1, objCol2, objCol3;
    var intDifference;
	
    var objCol1 = document.getElementById('col1');
    var objCol2 = document.getElementById('col2');
    var objCol3 = document.getElementById('col3');	
    
    if(objCol1.offsetHeight > objCol3.offsetHeight){
      objCol2.style.height = objCol1.offsetHeight;
    }
    else{
      objCol2.style.height = objCol3.offsetHeight;
    }
 }