<?php

    function isIntegerWithinRange($value, $minval, $maxval) {
            $isOK = 1;
		if (!preg_match("/^\d+$/",$value)) {
			$isOK = 0;
		}
		else
		{
			if (($minval != null) && ($value < $minval)) {
				$isOK = 0;
			}
			if (($maxval != null) && ($value > $maxval)) {
				$isOK = 0;
			}
		}
		return $isOK;
	}

    function verifyInput(&$errMsg) {
    global $vars_array, $slashesadded;
    
    // we go through all the form elements and verify whether the input is valid....
    
    $errFlag = 0; // initialize the error flag to 0 - false..
    
    while (list($key, $value) = each($vars_array)) {
      // echo $key."=".$value."<br>\n";
      switch ($key) {
        case "anbTitle" :
          if (($value == null) || ($value == "")) {
            $errMsg = $errMsg."Please choose a Title - note that fields with an asterik mark are mandatory. <br>";
            $errFlag = 1;
          }
          break;
        case "anbFName" :
          if (($value == null) || ($value == "")) {
            $errMsg = $errMsg."Please enter a First Name - note that fields with an asterik mark are mandatory. <br>";
            $errFlag = 1;
          }
          break;
        case "anbLName" :
          if (($value == null) || ($value == "")) {
            $errMsg = $errMsg."Please enter a Last Name - note that fields with an asterik mark are mandatory. <br>";
            $errFlag = 1;
          }
          break;
        case "anbAddr" :
          if (($value == null) || ($value == "")) {
            $errMsg = $errMsg."Please enter the address - note that fields with an asterik mark are mandatory. <br>";
            $errFlag = 1;
          }
          break;
        case "anbCntry" :
          if (($value == null) || ($value == "")) {
            $errMsg = $errMsg."Please choose a Country - note that fields with an asterik mark are mandatory. <br>";
            $errFlag = 1;
          }
          break;          
        case "anbEmail" :
          if (($value == null) || ($value == "")) {
            $errMsg = $errMsg."Please enter a valid email address - note that fields with an asterik mark are mandatory. <br>";
            $errFlag = 1;
          }
          break;          
        case "ctgID" :
          if (($value == null) || ($value == "")) {
            $errMsg = $errMsg."Please choose a registration category - note that fields with an asterik mark are mandatory. <br>";
            $errFlag = 1;
          }
          break;
        case "pymMethod" :
          if (($value == null) || ($value == "")) {
            $errMsg = $errMsg."Please choose a method of payment - note that fields with an asterik mark are mandatory. <br>";
            $errFlag = 1;
          }
          else {
            $paymentMethod = $value;
          }
          break;
        case "crdType" :
          if ($paymentMethod == "crd") {
            if (($value == null) || ($value == "")) {
              $errMsg = $errMsg."You have selected credit card as mode of payment - please choose a valid card type. <br>";
              $errFlag = 1;
            }
          }
          break;
        case "crdName" :
          if ($paymentMethod == "crd") {
            if (($value == null) || ($value == "")) {
              $errMsg = $errMsg."You have selected credit card as mode of payment - please choose name of the card holder. <br>";
              $errFlag = 1;
            }
          }
          break;
        case "crdNumber" :
          if ($paymentMethod == "crd") {
            if (($value == null) || ($value == "")) {
              $errMsg = $errMsg."You have selected credit card as mode of payment - please enter the card number. <br>";
              $errFlag = 1;
            }
          }
          break;        
        case "crdDate" :
          if ($paymentMethod == "crd") {
            if (($value == null) || ($value == "")) {
              $errMsg = $errMsg."You have selected credit card as mode of payment - please enter the expiry date of the card. <br>";
              $errFlag = 1;
            }
          }
          break;
      }
    }
    return $errFlag;
  }
?>