function getOffsets (evt) {
  var target = evt.target;
  if (typeof target.offsetLeft == 'undefined') {
    target = target.parentNode;
  }
  var pageCoords = getPageCoords(target);
  var eventCoords = { 
    x: window.pageXOffset + evt.clientX,
    y: window.pageYOffset + evt.clientY
  };
  var offsets = {
    offsetX: eventCoords.x - pageCoords.x,
    offsetY: eventCoords.y - pageCoords.y
  }
  return offsets;
}

function getPageCoords (element) {
  var coords = {x : 0, y : 0};
  while (element) {
    coords.x += element.offsetLeft;
    coords.y += element.offsetTop;
    element = element.offsetParent;
  }
  return coords;
}
ns4 = (document.layers)? true:false
ie4 = (document.all)? true:false
ns6 = (document.getElementById)? true:false
function showHint(hintname, evt)
{
if(ie4)   // si es explorer el browser
{
	document.all(hintname).style.pixelLeft = evt.clientX-evt.offsetX-2;
	document.all(hintname).style.pixelTop = 215;
	document.all(hintname).style.visibility="visible";
	document.all(hintname).style.display="block";
	}
	else if(ns4 || ns6)
	{
	document.getElementById(hintname).style.left=evt.pageX-getOffsets(evt).offsetX+"px";
	document.getElementById(hintname).style.top = 215+"px";
	document.getElementById(hintname).style.visibility="visible";
	document.getElementById(hintname).style.display="block";
	}
}
function showHint2(hintname, event)
{
document.getElementById(hintname).style.visibility="visible";
document.getElementById(hintname).style.display="block";
}
function hideHint(hintname)
{
document.getElementById(hintname).style.visibility="hidden";
document.getElementById(hintname).style.display="none";
}
function textCounter(field, countfield, maxlimit) {
	if (field.value.length > maxlimit) // if too long...trim it!
		field.value = field.value.substring(0, maxlimit);
	else 
		countfield.value = maxlimit - field.value.length;
}

function validate(emailad) {
var exclude=/[^@\-\.\w]|^[_@\.\-]|[\._\-]{2}|[@\.]{2}|(@)[^@]*\1/;
var check=/@[\w\-]+\./;
var checkend=/\.[a-zA-Z]{2,3}$/;
	if(((emailad.search(exclude) != -1)||(emailad.search(check)) == -1)||(emailad.search(checkend) == -1))
{
 return true
  }
 else  return false
}
function verifydigit(texto)
{
  largo = texto.length;
  for (i=0; i < largo ; i++ )
    {
   if ( texto.charAt(i) != "0" && 
        texto.charAt(i) != "1" && texto.charAt(i) != "2" && 
        texto.charAt(i) != "3" && texto.charAt(i) != "4" && 
        texto.charAt(i)!= "5" && texto.charAt(i) != "6" && 
        texto.charAt(i) != "7" && texto.charAt(i)!= "8" && 
        texto.charAt(i) != "9" && texto.charAt(i)!= "-")
        {
          return false;
        }
    }
    return true;
}
function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}
var submitcount=0;

function conta() {
   if (submitcount == 0)
      {
      submitcount++;
      return true;
      }
   else 
      {
      alert("Los datos del formulario se est?n procesando..");
      return false;
      }
   }
function enviar()
{
	forma = document.contacto;
	if(forma.email.value=="")
	{
	alert("Ingrese su email")
	forma.email.focus()
	}
	else if(validate(forma.email.value))
	{
    alert("Debe contener email valido.")
	forma.email.focus()
    }
	else
	{
	forma.submit()
	}
}

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];}
}