/*
  // Selious BV Javascript form validation library
  //



// All these functions return true if conditions are met:
//
// is_number(strText)

  
  
  
  */
/*

Tests if an string only contains alfanumeric chars

*/

// Copy these to local scope for IE6 bug

var g_Alpha = /^[a-zA-Z]*$/;
var g_AlphaSpc = /^[a-zA-Z ]*$/;
var g_AlphaDot = /^[a-zA-Z\.]*$/;
var g_AlphaDotSpc = /^[a-zA-Z\. ]*$/;
var g_AlphaNum = /^[a-zA-Z0-9]*$/g;
var g_AlphaNumSpc = /^[a-zA-Z0-9 ]*$/g;
var g_AlphaNumDot = /^[a-zA-Z0-9\.]*$/g;
var g_AlphaNumDotSpc = /^[a-zA-Z0-9\. ]*$/g;
var g_AlphaNumSpe = /^[a-zA-Z0-9\.\-_]*$/g;
var g_AlphaNumSpeSpc = /^[a-zA-Z0-9\.\-_ ]*$/g;
var g_Telephone = /^[0-9]*$/g;

function tst_txt_chars(strText, objRegExp){
  return objRegExp.test(strText);
}
  
function tst_txt_size(strText, minSize, maxSize){
  var local_temp_str;
  local_temp_str=trim(strText);
  if (local_temp_str.length<minSize || local_temp_str.length>maxSize)
    return false;
  else
    return true;    
}


function trim(theString){
  return leftTrim(rightTrim(theString));
}

function rightTrim(theString) {
    return theString.replace(/\s+$/gi, "");
}

function leftTrim(theString) {
    return theString.replace(/^\s*/gi, "");
}

function tst_valid_email(emailStr) {
  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]
  if (user.match(userPat)==null) {
      return false
  }
  var IPArray=domain.match(ipDomainPat)
  if (IPArray!=null) {
      // this is an IP address
  	  for (var i=1;i<=4;i++) {
  	    if (IPArray[i]>255) {
    		return false
  	    }
      }
      return true
  }
  var domainArray=domain.match(domainPat)
  if (domainArray==null) {
      return false
  }
  var atomPat=new RegExp(atom,"g")
  var domArr=domain.match(atomPat)
  var len=domArr.length
  if (domArr[domArr.length-1].length<2 || 
      domArr[domArr.length-1].length>3) {
     return false
  }
  if (len<2) {
     var errStr="This address is missing a hostname!"
     return false
  }
  return true;
}