window.onload = function() {
  setFooter();
  /* check_menu('main_menu'); 
  fix_ie_hover_bug('main_menu'); */
}

window.onresize = function() {
  setFooter();
}

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 setFooter() {
	if (document.getElementById) {
		var windowHeight=getWindowHeight();
		if (windowHeight>0) {
			var contentHeight=obj_height('header')+obj_height('content');
			var footerElement=document.getElementById('footer');
			var footerHeight=footerElement.offsetHeight;
			if (windowHeight-(contentHeight+footerHeight)>=0) {
				document.getElementById('content').style.height = (windowHeight-obj_height('header')-obj_height('footer'))+'px';
				// dump(document.getElementById('global_wrap').style.height)
				footerElement.style.position='absolute';
				footerElement.style.bottom='0px';
			}
			else {
				footerElement.style.position='static';
				document.getElementById('content').style.height = 'auto';
			}
		}
	}
}

function obj_height(id) {
	obj = document.getElementById(id);
	return obj.offsetHeight;
}