function verify() {
    var error_message = new String();
    
    if (document.instructionform.customer.value=="" && document.instructionform.customer2.value=="") {
      error_message = "Please enter YOUR/COMPANY NAME in the appropriate section. \n";
    }
	if (document.instructionform.job.value=="" && document.instructionform.job2.value=="") {
      error_message = error_message + "Please enter JOB NAME in the appropriate section. \n";
    }
	if (document.instructionform.telephone.value=="" && document.instructionform.telephone2.value=="") {
      error_message = error_message + "Please enter TELEPHONE NUMBER in the appropriate section. \n";
    }
	if (document.instructionform.email.value=="" && document.instructionform.email2.value=="") {
      error_message = error_message + "Please enter EMAIL ADDRESS in the appropriate section. \n";
    }
    //alert if fields are empty and cancel form submit
    if (error_message.length > 2) {
      alert(error_message);
      return false;
    }
    return true;
  }