function build_footer() {
	if (document.getElementById("background_main") && document.getElementById("background_main").offsetHeight) {
		if (document.getElementById("background_main").offsetHeight>0) {
			var bgf = new Element('div', {id: 'background_footer', styles: {'top': (document.getElementById("background_main").offsetHeight-854+13)+'px'}});
			bgf.inject(document.body);
		}
	}
}

window.addEvent('domready',function(){ 
	FB.init('d143652d21b958575d63bf238181adab');
	window.setTimeout("build_footer();",500);
});