function MM_findObj(n, d) { 
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document); return x;
}

function MM_showHideLayers(p,v) {
  var obj;
	obj=MM_findObj(p);
    obj=obj.style; v=(v=='show')?'visible':(v='hide')?'hidden':v;
   	obj.visibility=v; 
}


function link(l) { 
	window.location.href= l;
}



function roll(boton,n) {
     boton.className = "BIzq" + n;
}

function rollin(boton) {
  if (boton.className.substr(boton.className.length - 1) == "0") {
     boton.className = boton.className.substr(0,boton.className.length - 1) + "1";
  }
}

function rollout(boton) {
  if (boton.className.substr(boton.className.length - 1) == "1") {
     boton.className = boton.className.substr(0,boton.className.length - 1) + "0";
  }
}