function ventana(imagename, ancho, alto){
ancho=ancho+20
alto=alto+30
if (ancho > 760) {ancho=760;};
if (alto > 650) {alto=650;};
window.open(imagename,"Imagen","menubar=no,scrollbars=yes,status=no,width="+ancho+",height="+alto+", top=0, left=0, screenX=0, screenY=0")
}


 function infoscroll(seed,looped)
  {
    var text1  = " PINACAR - MARMOLES Y GRANITOS";
    var msg    = text1;
    var putout = " ";
    var c      = 1;
    if (looped > 3) {
      
    }
    else if (seed > 100) {
         seed--;
         var cmd="infoscroll(" + seed + "," + looped + ")";
         timerTwo=window.setTimeout(cmd,100);
    }
    else if (seed <= 100 && seed > 0) {
      for (c=0 ; c < seed ; c++)
        putout += " ";
      putout += msg.substring(0, 100-seed);
      seed--;
      var cmd = "infoscroll(" + seed + "," + looped + ")";
      window.status = putout;
      timerTwo = window.setTimeout(cmd,100);
    }
    else if (seed <= 0) {
      if (-seed < msg.length) {
        putout+=msg.substring(-seed,msg.length);
        seed--;
        var cmd="infoscroll(" + seed + "," + looped + ")";
        window.status=putout;
        timerTwo=window.setTimeout(cmd,100); // 100
      }
      else {
        window.status=" ";
        looped += 1;
        var cmd = "infoscroll(100," + looped + ")";
        timerTwo=window.setTimeout(cmd,75); // 75
      }
    }
  }

  infoscroll(100,1);
  
 
 
<!--botonera
function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

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];}}
}

function MM_findObj(n, d) { //v4.01
  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);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}
//-->acaba la botonera

function promocion(form){
var URL = document.form.site.options[document.form.site.selectedIndex].value;
window.location.href = URL;
}



<!--
function MM_validateForm() { //v4.0
  var i,p,q,nm,test,num,min,max,errors='',args=MM_validateForm.arguments;
  for (i=0; i<(args.length-2); i+=3) { test=args[i+2]; val=MM_findObj(args[i]);
    if (val) { nm=val.name; if ((val=val.value)!="") {
      if (test.indexOf('isEmail')!=-1) { p=val.indexOf('@');
        if (p<1 || p==(val.length-1)) errors+='- '+nm+', introduzca una direccion de correo.\n';
      } else if (test!='R') { num = parseFloat(val);
        if (isNaN(val)) errors+='- '+nm+', introduzca un número.\n';
        if (test.indexOf('inRange') != -1) { p=test.indexOf(':');
          min=test.substring(8,p); max=test.substring(p+1);
          if (num<min || max<num) errors+='- '+nm+' must contain a number between '+min+' and '+max+'.\n';
    } } } else if (test.charAt(0) == 'R') errors += '- '+nm+'.\n'; }
  } if (errors) alert('Para atenderle correctamente debe rellenar:\n'+errors);
  document.MM_returnValue = (errors == '');
}
//-->



<!-- Begin
function lista(form){
var URL = document.form.site.options[document.form.site.selectedIndex].value;
window.location.href = URL;
}
// End -->