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C#
function resize()
{
var ht = window.innerHeight;
var h = document.getElementById("header").clientHeight;
var f = document.getElementById("footer").clientHeight;

var sum = ht-h-f;

document.getElementsByClassName("main")[0].style.height = sum+'px';

}
Posted

There's no reason to change it, if it works.

In jQuery, to get elements by ID do:
JavaScript
$("#header").height();


To get elements by class use a . instead of a #.

JavaScript
$(".main")...


There's lots of tutorials online as well if you just google the specific thing you need.
 
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Try this

JavaScript
$(function () {
          alert('page load');
          var ht = window.innerHeight;
          var h = $('#header')[0].clientHeight;
          var f = $('#footer')[0].clientHeight;

          var sum = ht - h - f;
          $('.main').first().height(sum);

      });
 
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