// JavaScript Document
function colEQ () {
        var lefth, righth, dif;
        lefth=document.getElementById('mainc').offsetHeight;
        righth=document.getElementById('mainr').offsetHeight;
        if (lefth > righth) {
              dif = lefth - righth;
              document.getElementById('homeull').style.paddingBottom=dif+"px";

        }
        if (righth > lefth) {
                dif = righth - lefth;
                document.getElementById('mainc').style.paddingBottom=dif+"px";
        }

}