var isNN = (navigator.appName.indexOf("Netscape")!=-1);

function mailpage()
{
mail_str = "mailto:?subject=Take a look at the " + document.title + " website";
mail_str += "&body=" + document.title;
mail_str += ". Web Address: " + location.href; 
location.href = mail_str;
}

function isEmailAddr(email)
{
  var result = false
  var theStr = new String(email)
  var index = theStr.indexOf("@");
  if (index > 0)
  {
    var pindex = theStr.indexOf(".",index);
    if ((pindex > index+1) && (theStr.length > pindex+1))
	result = true;
  }
  return result;
}

function autoTab(input,len, e) {
  var keyCode = (isNN) ? e.which : e.keyCode; 

  if (keyCode<48 || keyCode>57 )
		return false;
		
  if (input.value.length >= len) {
    input.value = input.value.slice(0, len);
    if (input.form[(getIndex(input)+1) % input.form.length].readOnly == true)
			input.form[(getIndex(input)+2) % input.form.length].focus();
		else
			input.form[(getIndex(input)+1) % input.form.length].focus();
  }

  function containsElement(arr, ele) {
    var found = false, index = 0;
    while(!found && index < arr.length)
      if(arr[index] == ele)
        found = true;
      else
        index++;
    return found;
  }
  
  function getIndex(input) {
    var index = -1, i = 0, found = false;
    while (i < input.form.length && index == -1)
      if (input.form[i] == input)index = i;
      else i++;
    return index;
  }
  
return true;
}