document.oncontextmenu = function(){return false}
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_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_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];}
}
function validar(){
	var clicked = 0;
		if (clicked == 0){
         error = 0;
         msg = "";
         claves = 0;
		 if (/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(form.mail.value)){
   		 } else {
            error++;
            msg += "\n\E-mail."
  		 }
		 if (form.nombre.value == ""){
            error++;
            msg += "\n\Sujet."
		 	}
         if (form.texto.value == ""){
            error++;
            msg += "\n\Message"
		 	}
		 //
		 if (error == 1){
            if (claves == 0)
               alert("Debe facilitarnos el dato siguiente:\n" + msg)
            else
               alert("Se ha producido un error:\n" + msg)
            }
         if (error > 1)
            alert("Debe facilitarnos los datos siguientes:\n" + msg)
         if (error == 0){
            if (clicked == 0)
            {
               clicked = 1;
            }
            document.form.submit();
         }
	}
}