function MakeSameHeight(col1,col2) {
     // Make the left and right columns the same height.
     // Do this by making the shortest the same length as the tallest.
     var leftHeight = document.getElementById(col1).offsetHeight;
     var rightHeight = document.getElementById(col2).offsetHeight;
     if(rightHeight < leftHeight) {
          // Make the right side taller
          document.getElementById(col2).style.height = leftHeight + "px";
     } else if(leftHeight<rightHeight) {
          // Make the left side taller
          document.getElementById(col1).style.height = rightHeight + "px";
     } else {
          // Already the same height
     }
}