function getWindowHeight() {
	var windowHeight = 0;
	if (typeof(window.innerHeight) == 'number') {
		windowHeight = window.innerHeight;
	}
	else {
		if (document.documentElement && document.documentElement.clientHeight) {
			windowHeight = document.documentElement.clientHeight;
		}
		else {
			if (document.body && document.body.clientHeight) {
				windowHeight = document.body.clientHeight;
			}
		}
	}
	return windowHeight;
}
function ajust(){
	var windows = getWindowHeight();
	var header = document.getElementById('header').offsetHeight;
	var footer = document.getElementById('footer').offsetHeight;
	var container = document.getElementById('container').offsetHeight;
	//alert(container);
	//document.getElementById('container').style.height = (windows) +'px' ;	
	
}
window.onload = function() {
	ajust();
}
window.onresize = function() {
	ajust();
}