/// <reference path="jquery-1.3.2.js" />
var doc_height = document.documentElement.clientHeight;
var browser = navigator.appVersion;
var ie = 'MSIE 6.0';
$(document).ready(function() {
	var head_a = $('#head').height();
	var head_off = $('#head').offset().top;
	var foot_a = $('#foot').height();
	var height_a = doc_height - head_a - foot_a - head_off-100;
	$('.main').css('min-height',height_a);
	if (browser.indexOf(ie) != -1) {
			if(height_a<doc_height)
				$('.main').css('height',height_a);
			}
});