/*************************************************\
| Product Bundle Mod                              |
|                                                 |
| BCS Engineering                                 |
| Copyright (c) 2008 BCS Engineering,             |
| Carrie L. Saunders <support@bcsengineering.com> |
| All rights reserved.                            |
| See http://www.bcsengineering.com/license.shtml |
| for full license                                |
| For X-cart versions 4.1.X                       |
\*************************************************/

var checkbox_prefix = 'bundle_pid';

function count_selected_items(){
	var match_string = new RegExp('^'+checkbox_prefix+'.+$','');

	var count = 0;

	var input_items = document.getElementsByTagName('input');
	for(var x=0;x<input_items.length;x++){
		var input_item = input_items[x];
		if(input_item.type.toLowerCase() == 'checkbox'){
			if(input_item.id.match(match_string) && input_item.checked)
				count++;
		}
	}

	return count;
}

function check_selected_item(element){
	var selected_items = count_selected_items();

	if(selected_items > max_items){
		element.checked = false;
		alert(max_item_error);
	}

	return;
}

function bundle_add_to_cart_check(){
	var selected_items = count_selected_items();

	if(selected_items != max_items){
		alert(item_count_add_error);
		return false;
	}

	return true;
}