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 );
		};
};