<!--- popup ----------------------------->
function ventana (URL,numero,ancho,alto){
   window.open(URL,"Ventana"+numero,"width=" + ancho + ",height=" + alto + ",top=100,left=200,scrollbars=NO,resizable=no,Directories=NO,Location=NO,Menubar=NO,Status=NO,Titlebar=NO,Toolbar=NO")
}



<!--- carga imágenes ----------------------------->

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];
	}
}





<!--- expande letra ----------------------------->
var banZoom = null

function creceLetra()
{
var obj = banZoom
var tma
tma = parseInt(obj.style.fontSize)

if (tma<obj.maxTam)
    {
    obj.style.fontSize = tma + 1
    setTimeout("creceLetra("+obj.maxTam+")",300)
    }
else
    setTimeout("resetear()",200)
}

function resetear(mn, mx, rapidez, idBan)
{
if (banZoom == null)
    {
    banZoom = document.getElementById(idBan)
    banZoom.maxTam = mx
    banZoom.minTam = mn
    banZoom.rapidez = rapidez
    }
banZoom.style.fontSize = banZoom.minTam
setTimeout("creceLetra()",rapidez)
}



<!--- cambia color fondo celda ------------------>
function uno(src,color_entrada) {
    src.bgColor=color_entrada;src.style.cursor="hand";
}
function dos(src,color_default) {
   src.bgColor=color_default;src.style.cursor="default";
}