Find out divs height and setting div height

Question

I\'m quite new to javascript/jquery stuff, but i would like to do this kind of thing with it:

I have four divs side-by-side like this and content in each one. Now if

Answer 1

This is simple code

var heights = $("element").map(function ()
{
    return $(this).height();
}).get(),

MaxHeight = Math.max.apply(null, heights);

or

var highest = null;
var hi = 0;
$(".testdiv").each(function(){
var h = $(this).height();
if(h > hi){
   hi = h;
 highest = $(this);  
 }    
});

highest.css("background-color", "red");