function foros() {
var open = Ext.get('finestraForos');  
if (open == null){   
	var win = new Ext.Window({
	                id: 'finestraForos',
	                title: 'foros',
	                width:1000,
	                height:600,
	                activeTab:0,
	                iconCls: 'forum',
	                shim:false,
	                animCollapse:false,
	                border:false,
	                constrainHeader:true,
	                autoLoad:'foros/foros.php'
	 			});
	        win.show();
	}else{
		Ext.Msg.alert(JLI_ERROR_Oops, JLI_ERROR_Finestra_oberta);
	}
}