function hover (id) {
	var img = 'hover_' + id + '.jpg';
	
	
	$(id).style.background='url(/_img/structure/' + img + ')';
	
	//$(id).setStyle('background-image', 'url(/_img/structure/' + img + ')');
}

function unhover (id) {
	$(id).style.background='url(/_img/structure/hover_vide.jpg)';
}



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 headerHeight = document.getElementById('header').offsetHeight;
			var contentHeight = document.getElementById('content').offsetHeight;
			var footerHeight = document.getElementById('footer').offsetHeight;
			
			
			var total = headerHeight + contentHeight + footerHeight;
			//alert(total);
			
			var siteElement = document.getElementById('site_web2');
			var siteHeight = siteElement.offsetHeight;
			
			//alert(normal);
			
			if (windowHeight > siteHeight) {
				siteElement.style.height = windowHeight + 'px';
			} else if (first == false) {
				siteElement.style.height = normal + 'px';
			}
			
			var first = false;
		}
	}
}

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

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