function setEHeight(elem,elem2){
  
  $(document).ready(function() {
    var height1 = getEHeight(elem);
    var height2 = getEHeight(elem2);
    
    if(height1>height2){
        setHeight(elem2,height1)
    }else{
        setHeight(elem,height2)
    }    
    
  });
  
}
function getEHeight(elem){
  return document.getElementById(elem).offsetHeight;
}
function setHeight(elem,Eheight){
 /* +6 wegen minus margin im bottom */  
  document.getElementById(elem).style.height=(Eheight+6)+"px";
}