$(document).ready(function() {
  
    var max_height = 0; 
    function widgetsSameHeight( elements ) { 
        elements.each(function(){ 
             if($(this).outerHeight() > max_height){ 
                max_height = $(this).outerHeight();    
            } 
        }); 
        elements.height(max_height); 
    } 
 
  $(window).bind("load", function() {
    widgetsSameHeight( $('.col') );
  });
  
});