function abre(pg){

	document.getElementById('item01').className="item01";
	document.getElementById('item02').className="item02";
	document.getElementById('item03').className="item03";
	document.getElementById('item04').className="item04";
		
	if(pg == 1){
		document.location.href="home.php";
		document.getElementById('item01').className="item01SEL";
	}
	if(pg == 2){
		document.location.href="cardapio.php";
		document.getElementById('item02').className="item02SEL";
	}
	if(pg == 3){
		document.location.href="sala.php";
		document.getElementById('item03').className="item03SEL";
	}
	if(pg == 4){
		document.location.href="contato.php";
		document.getElementById('item04').className="item04SEL";
	}
	

}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

<!--
  i = 0;
  tempo = 50;
  tamanho = 2000;
 
t=0;


  function RolarCima() {
	document.getElementById('painel').scrollTop = i;
	if(i<tamanho)
		i=i+10;
	t = setTimeout("RolarCima()", tempo);
   
  }
  
  function RolarBaixo() {
	document.getElementById('painel').scrollTop = i;
	if(i>0)
		i=i-10;
	t = setTimeout("RolarBaixo()", tempo);
   
  }
  function Parar() {
	clearTimeout(t);
  }
  //-->