I'm working on a fluid layout project. I have some fixed height DIVs in my document, and the heights are different for all of them. I need to proportionally change these DIVs height on browser resize. Here is the markup.

<body>
<div id="a" class="target"></div>
<div id="b" class="target"></div>
<div id="c" class="target"></div>
</body>

And css:

<style>
    body { width: 90%; margin: 0 auto;} 
    .target { width:30%; float:left; margin:1.6%; cursor:pointer; }
    #a { height: 200px; background-color: yellow;}
    #b { height: 400px; background-color: green;}
    #c { height: 600px; background-color: grey;}
</style>

Sounds easy! The main condition is that i don't know the precize amount of target DIVs and their IDs, that's why i'm using .each(function()). Here is script i wrote: 

$(document).ready(function(){
//set the initial body width
var originalWidth = 1000; 
/*I need to go through all target divs because i don't know 
how many divs are here and what are their initial height*/
$(".target").each(function() 
{
    //get the initial height of every div
    var originalHeight = $(this).height(); 
    //get the new body width
    var bodyWidth = $("body").width(); 
    //get the difference in width, needed for hight calculation 
    var widthDiff = bodyWidth - originalWidth; 
    //new hight based on initial div height
    var newHeight = originalHeight + (widthDiff / 10); 
    //sets the different height for every needed div
    $(this).css("height", newHeight); 
});

});

This script perfectly works when user reload the page. How can i get the same results dinamically, when user resizes browser without reloading? I know i should apply $(window).resize event listener. But the problem is that DIV's initial height will be calculated inside the event and the result will be almoust

jquery height window-resize
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