function open_window(votre_page){
	var hauteur_popup=500;
	var H = (screen.height - hauteur_popup) / 2;
	var largeur_popup=550;
	var L = (screen.width - largeur_popup) / 2;
	pop_up = window.open(votre_page,"Popup","status=yes,scrollbars=yes,resizable=no,height="+hauteur_popup+",width="+largeur_popup+",top="+H+",left="+L);
}


function showLoading (){
	//alert ("carregant");
	//$('result_new_user'.innerHTML) = "Carregant...";
	Element.remove('new_user');
	Element.remove('register_link');
	$('show_loading_div').innerHTML = '<img src="http://www.ocisport.net/media/ajax-loader.gif" />';
}

function hideLoading (){
	//alert ("deixa de carregar");
	Element.remove('show_loading_div');
}

function menu(P_div) {
	 var elem=window.document.getElementById(P_div);
	 elem.style.display=(elem.style.display=="none")?"":"none";
}