$(document).ready(function(){
			
			//set the starting bigestHeight variable
			var biggestHeight = 0;
			//check each of them
			$('.heights').each(function(){
				//if the height of the current element is
				//bigger then the current biggestHeight value
				if($(this).height() > biggestHeight){
					//update the biggestHeight with the
					//height of the current elements
					biggestHeight = $(this).height();
				}
			});
			//when checking for biggestHeight is done set that
			//height to all the elements
			$('.heights').height(biggestHeight);
			
		});