/*********************************************************/
 /*********   keyboard live-search methods   *********/
 /*********************************************************/


 // handler for keyboard events on address-fields
 this.ksearch_keypress = function(e, obj)
  {
  if (typeof(this.env.contacts)!='object' || !this.env.contacts.length)
   return true;

  if (this.ksearch_timer)
   clearTimeout(this.ksearch_timer);

  if (!e)
   e = window.event;
   
  var highlight;
  var key = e.keyCode ? e.keyCode : e.which;

  switch (key)
   {
   case 38: // key up
   case 40: // key down
    if (!this.ksearch_pane)
     break;
     
    var dir = key==38 ? 1 : 0;
    var next;
    
    highlight = document.getElementById('rcmksearchSelected');
    if (!highlight)
     highlight = this.ksearch_pane.ul.firstChild;
    
    if (highlight && (next = dir ? highlight.previousSibling : highlight.nextSibling))
     {
     highlight.removeAttribute('id');
     //highlight.removeAttribute('class');
     this.set_classname(highlight, 'selected', false);
     }

    if (next)
     {
     next.setAttribute('id', 'rcmksearchSelected');
     this.set_classname(next, 'selected', true);
     this.ksearch_selected = next._rcm_id;
     }

    if (e.preventDefault)
     e.preventDefault();
    return false;

   case 9: // tab
    if(e.shiftKey)
     break;

   case 13: // enter   
    if (this.ksearch_selected===null || !this.ksearch_input || !this.ksearch_value)
     break;

    // get cursor pos
    var inp_value = this.ksearch_input.value.toLowerCase();
    var cpos = this.get_caret_pos(this.ksearch_input);
    var p = inp_value.lastIndexOf(this.ksearch_value, cpos);
    
    // replace search string with full address
    var pre = this.ksearch_input.value.substring(0, p);
    var end = this.ksearch_input.value.substring(p+this.ksearch_value.length, this.ksearch_input.value.length);
    var insert = this.env.contacts[this.ksearch_selected]+', ';
    this.ksearch_input.value = pre + insert + end;
    
    //this.ksearch_input.value = this.ksearch_input.value.substring(0, p)+insert;
    
    // set caret to insert pos
    cpos = p+insert.length;
    if (this.ksearch_input.setSelectionRange)
     this.ksearch_input.setSelectionRange(cpos, cpos);
    
    // hide ksearch pane
    this.ksearch_hide();
   
    if (e.preventDefault)
     e.preventDefault();
    return false;

   case 27: // escape
    this.ksearch_hide();
    break;

   }