$(function() {   
	if ($('.wp-caption p').length) { // implies *not* zero
	equalHeight($(".wp-caption p"));
	}
});	

 
 
/*EQUAL HEIGHTS*/
// uses: $(document).ready(function(){   equalHeight($(".col"));  });
function equalHeight(group) {
  tallest = 0;
  group.each(function() {
    thisHeight = $(this).height();
    if(thisHeight > tallest) {
      tallest = thisHeight;
    }
  });
  group.height(tallest);
}