function getHeightByElementHTML(id)
{
	var id_element;
	id_element = document.getElementById(id);
	if (id_element.innerHeight) return id_element.innerHeight;
	else if (id_element.offsetHeight) return id_element.offsetHeight;
	else if (id_element.style.height) return id_element.style.height;
	else return 0;
}

function getHeightContent(id_content, id_footer, nav) {
	var height_page = 0;
	var height_content = 0;
	if (nav) {
		if (nav == 'Internet Explorer') {
			height_page = document.documentElement.clientHeight;
		}
		else {
			height_page = window.innerHeight;
		}
	}
	height_content = getHeightByElementHTML(id_content);
	
	if (height_page != 0 && height_content != 0) {
		if (height_page > height_content) {
			document.getElementById(id_footer).style.paddingBottom = ((height_page - height_content) - 33)+'px';
		}
	}
}