/**
 *   Class by Stickman -- http://www.the-stickman.com
 *      with thanks to:
 *      [for Safari fixes]
 *         Luis Torrefranca -- http://www.law.pitt.edu
 *         and
 *         Shawn Parker & John Pennypacker -- http://www.fuzzycoconut.com
 *      [for duplicate name bug]
 *         'neal'
 */
function MultiSelector(list_target, max) {
    this.list_target = list_target;
    this.count = 0;
    this.id = 0;
    if (max) {
        this.max = max;
    } else {
        this.max = -1;
    }
    ;
    this.addElement = function (element) {
        if (element.tagName == 'INPUT' && element.type == 'file') {
            element.name = 'file_' + this.id++;
            element.multi_selector = this;
            element.setAttribute("class", "textbox");
            element.onchange = function () {
                var new_element = document.createElement('input');
                new_element.type = 'file';
                this.parentNode.insertBefore(new_element, this);
                this.multi_selector.addElement(new_element);
                this.multi_selector.addListRow(this);
                this.style.position = 'absolute';
                this.style.left = '-1000px';
            };
            if (this.max != -1 && this.count >= this.max) {
                element.disabled = true;
            }
            ;
            this.count++;
            this.current_element = element;
        } else {
            alert('Error: not a file input element');
        }
        ;
    };
    this.addListRow = function (element) {
        var new_row = document.createElement('div');
        var new_row_button = document.createElement('input');
        new_row_button.type = 'button';
        new_row_button.value = 'X';
        new_row_button.setAttribute("class", "button");
        new_row_button.setAttribute("style", "margin-left:10px;");
        new_row.element = element;
        new_row_button.onclick = function () {
            this.parentNode.element.parentNode.removeChild(this.parentNode.element);
            this.parentNode.parentNode.removeChild(this.parentNode);
            this.parentNode.element.multi_selector.count--;
            this.parentNode.element.multi_selector.current_element.disabled = false;
            return false;
        };
        new_row.innerHTML = element.value;
        new_row.appendChild(new_row_button);
        this.list_target.appendChild(new_row);
    };
};