$(document).ready(function() {

      $('#toggleButton').click(function() {
           if ($('#toggleSection').is(":hidden"))
           {
                $('#toggleSection').slideDown("slow");
           } else {
                $('#toggleSection').slideUp("slow");
           }
      });

 
      $('#toggleCallbutton').click(function() {
           if ($('#toggleCallback').is(":hidden"))
           {
                $('#toggleCallback').slideDown("slow");
           } else {
                $('#toggleCallback').slideUp("slow");
           }
      });

      $('#toggleCallbuttonB').click(function() {
           if ($('#toggleCallback').is(":hidden"))
           {
                $('#toggleCallback').slideDown("slow");
           } else {
                $('#toggleCallback').slideUp("slow");
           }
      });
 
      $('#toggleCallbuttonC').click(function() {
           if ($('#toggleCallback').is(":hidden"))
           {
                $('#toggleCallback').slideDown("slow");
           } else {
                $('#toggleCallback').slideUp("slow");
           }
      });
	function getOff()
		{
			x = document.getElementById('contentarea');
			return x.offsetHeight;
		}

	function equalHeight(group) {
		tallest = 0;
		group.each(function() {
			thisHeight = getOff();
			if(thisHeight > tallest) {
				tallest = thisHeight;
			}
		});
		group.height(tallest);
	}
	
		equalHeight($(".column"));
		
	});