// JavaScript Document
///////////////////////////////////////////////////////
// Überprüfungsfunktionen für email-versand:
// wolfgang mader 5.1.2002
///////////////////////////////////////////////////////

function submitcheck()
{
if (IsEmailValid())
   {
   if (IsMessageValid())
      {
       if (IsNameValid())
          {
           document.form.submit();
          }
      }
   }
}

function submitcheck_nl()
{
if (IsEmailValid())
   {
      if (IsNameValid())
	      {
           document.form.submit();
          }
   }
}


///////////////////////////////////////////////////////////////////

function IsEmailValid()
{
var EmailOk  = true
var Temp     = document.form.email
var AtSym    = Temp.value.indexOf('@')
var Period   = Temp.value.lastIndexOf('.')
var Space    = Temp.value.indexOf(' ')
var Length   = Temp.value.length - 1   // Array is from 0 to length-1

if ((AtSym < 1) ||                     // '@' cannot be in first position
    (Period <= AtSym+1) ||             // Must be atleast one valid char btwn '@' and '.'
    (Period == Length ) ||             // Must be atleast one valid char after '.'
    (Space  != -1))                    // No empty spaces permitted
   {
      EmailOk = false
      alert('Please enter a valid email-address!')
      Temp.focus()
   }
return EmailOk
}


///////////////////////////////////////////////////////////////////


function IsMessageValid()
{
var Temp = document.form.message

if (Temp.value != "")
   return true;
else
   alert('Please enter a message!')
   Temp.focus()
   return false;
}


///////////////////////////////////////////////////////////////////


function IsNameValid()
{
var Temp = document.form.name

if (Temp.value != "")
   return true;
else
   alert('Please enter your name!')
   Temp.focus()
   return false;
}

///////////////////////////////////////////////////////////////////
//ENDE