
<!-- MOUSE OVER IMGS -->
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];}
}

<!-- MENU DE SALTO -->
function MM_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}

<!-- VENTANA POPUP -->
function openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}


<!-- CAMBIO TAMAÑO DE FUENTES -->

var f_act = 70;
var f_min = 50;
var f_max = 130;
var fx = 20;

function agrandarTxt(txt){  //v1.0
	var ntxt = document.getElementById(txt);
	f_act = (f_act >= f_max) ? f_max : f_act + fx;
	ntxt.style.fontSize = f_act+ "%";
}

function achicarTxt(txt){  //v1.0
	var ntxt = document.getElementById(txt);
    f_act = (f_act <= f_min) ? f_min : f_act - fx;
	ntxt.style.fontSize = f_act + "%";
}


<!-- VALIDACION FORMS DE CONTACTO -->
function 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=findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function validateForm() { //v4.0
  var i,p,q,nm,test,num,min,max,errors='',args=validateForm.arguments;
  errors="";
  for (i=0; i<(args.length-2); i+=3) { test=args[i+2]; val=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+' no es una dirección de e-mail válida.\n';
      } else if (test!='R') { num = parseFloat(val);
        if (isNaN(val)) errors+='- '+nm+' debe ser 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+' debe ser un valor entre '+min+' y '+max+'.\n';
    	} } } else if (test.charAt(0) == 'R') errors += '- falta completar '+nm+'.\n'; 
	}
  } 
  if (errors) {alert('Hay errores en los datos solicitados:\n'+errors);}
  document.returnValue = (errors == '');
}

function OcultarDIV(idDIV)
{
	var divOcultar = document.getElementById(idDIV);
	if(divOcultar!=null) divOcultar.style.visibility = "hidden";
}

function MostrarDIV(idDIV)
{
	var divMostrar = document.getElementById(idDIV);
	if(divMostrar!=null) divMostrar.style.visibility = "visible";
}

function trimString(myString)
{
	return myString.replace(/^\s+/g,'').replace(/\s+$/g,'');
}