function get_url_param(name)
{ 
	name = name.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]"); 
	var regexS = "[\\?&]"+name+"=([^&#]*)"; 
	var regex = new RegExp( regexS ); 
	var results = regex.exec( window.location.href ); 
	if( results == null )    return ""; 
	else return results[1];
}

function add_menu( name ) {
	var m = new Fx.Slide('contenuto_' + name);
	$(name).addEvent('click', function(e){
		e.stop();
		m.toggle();		
	});	
    m.hide();

//sPath = window.location.pathname;
////var sPage = sPath.substring(sPath.lastIndexOf('\\') + 1);
//var sPage = sPath.substring(sPath.lastIndexOf('/') + 1);
//alert(sPage);

	if ( get_url_param('menu') == name+"_" ) {
		m.show();
//        alert(name.substring(0,name.length-1));
		$(name).className = 'active';
	}
	if ( get_url_param('menu') == name ) {
		m.toggle();
		$(name).className = 'active';
	}

}

window.addEvent('load', function() {
    var value=get_url_param('menu');


	if ( value.substring(value.length-1,value.length) == "_" ) {
//        alert("inner"+value.substring(0,value.length-1));
    	add_menu(value.substring(0,value.length-1));
	} else {
//        alert("outer"+value);
        add_menu(value);
	}
});