// JavaScript Document
// form validation

function DS_validateForm() { //v4.0 Kane
  var i,p,q,nm,test,num,min,max,errors='',args=DS_validateForm.arguments;
  for (i=0; i<=(args.length-2); i+=3)
  {
    test=args[i+2];
    val=document.getElementById(args[i]);
    if (val)
    {
      nm=val.name;
      val=val.value;
      if(val=="")
      {
        if (test.charAt(0) == 'R') errors += '- '+nm+' is required.\n';
      }
    }
  }
  if (errors) alert('The following error(s) occurred:\n'+errors);
  document.MM_returnValue = (errors == '');
}

function showHelp(id)
{
  if ((document.getElementById(id)).style.display == "")
    {
      (document.getElementById(id)).style.display = "none";
    }
  else
    {
      (document.getElementById(id)).style.display = "";
    }
}

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_validateForm() { //v4.001 by DanielS
  var i,p,q,nm,test,num,min,max,errors='',args=MM_validateForm.arguments;
  for (i=0; i<(args.length-2); i+=3) { test=args[i+2]; val=MM_findObj(args[i]);
    if (val) { nm=val.name; if ((val=val.value)!="") {
      if (test.indexOf('isEmail')!=-1) { p=emailCheck(val);
        if (p==false) errors+='- '+nm+' must contain an e-mail address.\n';
      } else if (test!='R') { num = parseFloat(val);
        if (isNaN(val)) errors+='- '+nm+' must contain a number.\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+' must contain a number between '+min+' and '+max+'.\n';
    } } } else if (test.charAt(0) == 'R') errors += '- '+nm+' is required.\n'; }
  } if (errors) alert('The following error(s) occurred:\n'+errors);
  document.MM_returnValue = (errors == '');
}

function emailCheck(emailStr) // required by MM_validateForm() v4.001 by DanielS
{
  var checkTLD = 1;
  var knownDomsPat = /^(ie|pl|com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum)$/;
  var emailPat = /^(.+)@(.+)$/;
  var specialChars = "\\(\\)><@,;:\\\\\\\"\\.\\[\\]";
  var validChars = "[^\\s" + specialChars + "]";
  var quotedUser = "(\"[^\"]*\")";
  var ipDomainPat = /^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/;
  var atom = validChars + "+";
  var word = "(" + atom + "|" + quotedUser + ")";
  var userPat = new RegExp("^" + word + "(\\." + word + ")*$");
  var domainPat = new RegExp("^" + atom + "(\\." + atom + ")*$");
  var matchArray = emailStr.match(emailPat);
  if (matchArray == null)
    {
      return false;
    }
  var user = matchArray[1];
  var domain = matchArray[2];
  for (i = 0;i < user.length;i++)
    {
      if (user.charCodeAt(i) > 127)
        {
          return false;
        }
    }
  for (i = 0;i < domain.length;i++)
    {
      if (domain.charCodeAt(i) > 127)
        {
          return false;
        }
    }
  if (user.match(userPat) == null)
    {
      return false;
    }
  var IPArray = domain.match(ipDomainPat);
  if (IPArray != null)
    {
      for (var i = 1;i <= 4;i++)
        {
          if (IPArray[i] > 255)
            {
              return false;
            }
        }
      return true;
    }
  var atomPat = new RegExp("^" + atom + "$");
  var domArr = domain.split(".");
  var len = domArr.length;
  for (i = 0;i < len;i++)
    {
      if (domArr[i].search(atomPat) == - 1)
        {
          return false;
        }
    }
  if (checkTLD && domArr[(domArr.length - 1)].length != 2 && domArr[(domArr.length - 1)].search(knownDomsPat) == - 1)
    {
      return false;
    }
  if (len < 2)
    {
      return false;
    }
  return true;
}