function updateHidden(currentID, objElement, bookID) {
	// alert("currentID=" + currentID + " :: objElement=" + objElement + " :: bookID=" + bookID)
	var currentElement =  document.getElementById(currentID);
	if(objElement.checked) { 
		// alert(currentElement.value + ' should now be ' + bookID);
		currentElement.value=bookID;
	} else {
		// alert(currentElement.value + ' should now be x');
		currentElement.value='x';
	}
}
function updateHidden_withCount(currentID, objElement, bookID) {
	//alert("currentID=" + currentID + " :: objElement=" + objElement + " :: bookID=" + bookID)
	var cur_amt;
	if(parseInt(objElement.value)) {
		cur_amt = parseInt(objElement.value);
		var currentElement =  document.getElementById(currentID);
		// alert(objElement.value + ' - ' + bookID);
		currentElement.value= cur_amt + ' - ' + bookID ;
	} 
	else { 
		// alert('The value entered is not a valid number.  Please enter a numeric value');
		objElement.value = "";
		objElement.focus();
		return true;
	}
}