var FormValidation =
{
  init: function()
  {
	
	var forms = document.getElementsByTagName("form");
    
    for (var i = 0; i < forms.length; i++)
    {
      Core.addEventListener(forms[i], "submit", FormValidation.submitListener);
	  
    }
  },

  rules:
  {
    required: /./,
    requiredNotWhitespace: /\S/,
    positiveInteger: /^\d*[1-9]\d*$/,
    positiveOrZeroInteger: /^\d+$/,
    integer: /^-?\d+$/,
    decimal: /^-?\d+(\.\d+)?$/,
    email: /^[\w\.\-]+@([\w\-]+\.)+[a-zA-Z]+$/,
    telephone: /^(\+\d+)?( |\-)?(\(?\d+\)?)?( |\-)?(\d+( |\-)?)*\d+$/,
	url: /^(((ht|f)tp(s?))\:\/\/)?(www.|[a-zA-Z].)[a-zA-Z0-9\-\.]+\.(com|edu|gov|mil|net|org|biz|info|name|museum|us|ca|uk)(\:[0-9]+)*(\/($|[a-zA-Z0-9\.\,\;\?\'\\\+&%\$#\=~_\-]+))*$/		
  },

  errors:
  {
    required: "Please fill in this required field.",
    requiredNotWhitespace: "Please fill in this required field.",
    positiveInteger: "This field may only contain a positive whole number.",
    positiveOrZeroInteger: "This field may only contain a non-negative whole number.",
    integer: "This field may only contain a whole number.",
    decimal: "This field may only contain a number.",
    email: "Please enter a valid email address into this field.",
    telephone: "Please enter a valid telephone number into this field.",
	url: "Please enter a correct website address"
  },
  
  fieldserrors:
  {
    realname: 		"- your real name.",
    email: 			"- a valid email address",
    displayname: 	"- a name to be displayed.",
    comment: 		"- a comment.",
	firstname:		"- your first name",
	lastname:		"- your last name",
	tagID:			"- a tag"
  },
  
  submitListener: function(event)
  {
	
    var fields = this.elements;
    var errorMessage = "Please make sure you enter:\n";
	var errorFound = 0;
	var firstWrongField = 1;
    for (var i = 0; i < fields.length; i++)
    {
      var className = fields[i].className;
      var classRegExp = /(^| )(\S+)\b/g;
      var classResult;
     //alert (className);
      while (classResult = classRegExp.exec(className))
      {
        var oneClass = classResult[2];
        var rule = FormValidation.rules[oneClass];
		
		//alert('inside  submit liste2');
        if (typeof rule != "undefined")
        {
          if (!rule.test(fields[i].value))
          {
            if (firstWrongField == 1)
			{
				fields[i].focus();
				firstWrongField = 0;
				
			}
			
			errorMessage = errorMessage + FormValidation.fieldserrors[fields[i].name] + "\n";
            //alert(FormValidation.fieldserrors[fields[i].name]);
			
			errorFound = 1;
			
			//alert(FormValidation.errors[oneClass]);
            Core.preventDefault(event);
            //return;
          }
        }
      }
	  
    }
	if (errorFound)
	{
		alert(errorMessage);
		Core.preventDefault(event);
            //return;
	}
  }
};

Core.start(FormValidation);