Script Function: Q4CU

 function int Q4CU(obj user, obj usedon)
 {
   if (!isValid(usedon))
   {
     return (0x00);
   }
   if (!canSeeObj(user, usedon))
   {
     systemMessage(user, "Target can not be seen");
     return (0x00);
   }
   return (0x01);
 }