function store_input(this_form)

 {
	 var correct = true;
	 
	 var check_size = document.forms[this_form].shirt_size.value;
	 if (check_size == "" || check_size == null)
	  {
		  correct = false;
		  alert("Please select a size.");
	  }
	  
	  return correct;
 }