function makeScrollbar(content,scrollbar,handle,horizontal,ignoreMouse){
	var steps = (horizontal?(content.getScrollSize().x - content.getSize().x):(content.getScrollSize().y - content.getSize().y))
	var slider = new Slider(scrollbar, handle, {	
		steps: steps,
		mode: (horizontal?'horizontal':'vertical'),
		onChange: function(step){
			var x = (horizontal?step:0);
			var y = (horizontal?0:step);
			content.scrollTo(x,y);
		}
	}).set(0);
	if(!(ignoreMouse) ){
		$$(content, scrollbar).addEvent('mousewheel', function(e){	
			e = new Event(e).stop();
			var step = slider.step - e.wheel * 30;	
			slider.set(step);					
		});
		$('uparrow').addEvent('click',function(e){e = new Event(e).stop();slider.set(slider.step-100);});
		$('downarrow').addEvent('click',function(e){e = new Event(e).stop();slider.set(slider.step+100);});
	}
	$(document.body).addEvent('mouseleave',function(){slider.drag.stop()});
}
function changeTitle(mes,ano) {
	switch(mes){case '1':mes='Janeiro';break;case '2':mes='Fevereiro';break;case '3':mes='Março';break;case '4':mes='Abril';break;case '5':mes='Maio';break;case '6':mes='Junho';break;case '7':mes='Julho';break;case '8':mes='Agosto';break;case '9':mes='Setembro';break;case '10':mes='Outubro';break;case '11':mes='Novembro';break;case '12':mes='Dezembro';break;}
	$('noticias_ini').getElement('h2').innerHTML = mes+' '+ano;
}
window.addEvent('domready', function(){				
	makeScrollbar( $('noticias_scroll'), $('scrollbar'), $('handle') );
	if($('noticiasSelect')){
		$('noticiasSelect').addEvent('change', function(){
			var Parameters = this.value.split(',');
			var NoticiasReq = new Request.HTML({url:'ajax_noticias.asp',update:'noticias_scroll',evalScripts:false, onSuccess:function(){changeTitle(Parameters[0],Parameters[1])}}).post('ajax_noticias.asp?mes='+Parameters[0]+'&ano='+Parameters[1]);		
		});
	}
});