// 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( 'Er is een fout opgetreden' );
  };
};

this.addListRow = function( element )
{
 var new_row = document.createElement( 'div' );
 
 var new_row_button = document.createElement( 'input' );
 var new_row_label = document.createElement( 'div' );
 
 new_row.className = 'uploaddiv';
 new_row_label.className = 'uploadfilename';
 new_row_button.type = 'button';
 new_row_button.value = 'x';
 new_row_button.className = 'uploadbutton';
 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_label.appendChild(document.createTextNode(element.value.substring(12)));
  
  new_row.appendChild( new_row_button );
  new_row.appendChild( new_row_label );
  
  this.list_target.appendChild( new_row );
  };
  
};