The email_validate is a generic function so moving it to resources/functions.php.

resources/functions.php

@@ -1314,4 +1314,18 @@ function number_pad($number,$n) {
 		}
 	}
 
+//email validate
+	function email_validate($strEmail){
+	   $validRegExp =  '/^[a-zA-Z0-9\._-]+@[a-zA-Z0-9\._-]+\.[a-zA-Z]{2,3}$/';
+	   // search email text for regular exp matches
+	   preg_match($validRegExp, $strEmail, $matches, PREG_OFFSET_CAPTURE);
+
+	   if (count($matches) == 0) {
+		return 0;
+	   }
+	   else {
+		return 1;
+	   }
+}
+
 ?>