added function to check for invalid characters

code/Global/objectFunctions.js

@@ -45,4 +45,16 @@ function scheduler() {
 
 function onStart() {
    return;
+}
+
+/**
+ * functin checks if the string passed contains special characters like
+ * spaces, brackets etc.
+ */
+
+function isClean(str) {
+   var validChar = new RegExp("[^a-z,^A-Z,^0-9]");
+   if (validChar.exec(str))
+      return false;
+   return true;
 }