function enviar_formulario_contacto(){
	if (document.contacto.persona.value.length <= 2){
		alert ("Por favor, debe indicar la persona de contacto");
		document.contacto.persona.focus();
		return 0;
	}
	if ( document.contacto.email.value.length <= 7 && document.contacto.telefono.value.length <= 7 ){
		alert ("Por favor, debe indicar al menos un teléfono o un email válido de contacto");
		document.contacto.telefono.focus(); 
		return 0;
	}
	if (document.contacto.asunto.value.length <= 3){
		alert ("Por favor, Introduce un asunto de contacto");
		document.contacto.asunto.focus();
		return 0;
	}
	if (document.contacto.mensaje.value.length <= 5){
		alert ("Por favor, exponga su consulta.");
		document.contacto.mensaje.focus();
		return 0;
	}
	document.contacto.submit();
}

function AbrirVentana(URL,SB,ANCHO,ALTO,IZDA,ARRIBA) {
	day = new Date();
	id = day.getTime();
	eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=" + SB + ",location=0,statusbar=0,menubar=0,resizable=0,width=" + ANCHO + ",height=" + ALTO + ",left = " + IZDA + ",top = " + ARRIBA + "');");
}


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];}
}