/*=======Ver: 7.0.60906========*/
/*API Systems, (c) 2007,  -  redg77*/
function validar(e) { 
    tecla = (document.all) ? e.keyCode : e.which; 
    if (tecla==8) return true; 
    patron =/[A-Za-z\s]/;
    te = String.fromCharCode(tecla); 
    return patron.test(te); 
} 

function numero(e) { 
    tecla = (document.all) ? e.keyCode : e.which; 
    if (tecla==8) return true; 
    patron = /\d/; 
    te = String.fromCharCode(tecla); 
    return patron.test(te); 
} 

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];}
}
<!--Agregar a Favoritos-->
var url="http://www.bravesupplies.com" 
var titulo="Brave Supplies - Venta de Computadoras, Partes y Suministros"
function agregar(){
if (document.all)
window.external.AddFavorite(url,titulo)
}

function nuevaventana(vinculo,nombre,definir)
{
window.open(vinculo,nombre,definir);
}

function isEmailAddress(theElement, nombre_del_elemento )
{
var s = theElement.value;
var filter=/^[A-Za-z][A-Za-z0-9_]*@[A-Za-z0-9_]+\.[A-Za-z0-9_.]+[A-za-z]$/;
if (s.length != 0 ){
	if (filter.test(s))
	return true;
	else
	alert("Ingrese una direccion de correo valida");
	theElement.focus();
	return false;}
else
alert("Ingrese una direccion de correo");
theElement.focus();
return false;
}