// Multiple file selector 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.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 = 'Delete';
                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 );
        };
};