// clear Contact forms
  function clearContact () {
    var f = document.getElementById('name');
    f.onfocus = function() {
      if (this.value == 'name') this.value = '';
    }
    f.onblur = function() {
      if (this.value != '') return;
      this.value = 'name';
    }

    var f = document.getElementById('email');
    f.onfocus = function() {
      if (this.value == 'email') this.value = '';
    }
    f.onblur = function() {
      if (this.value != '') return;
      this.value = 'email';
    }

    var f = document.getElementById('phone');
    f.onfocus = function() {
      if (this.value == 'phone') this.value = '';
    }
    f.onblur = function() {
      if (this.value != '') return;
      this.value = 'phone';
    }

    var f = document.getElementById('message');
    f.onfocus = function() {
      if (this.value == 'message') this.value = '';
    }
    f.onblur = function() {
      if (this.value != '') return;
      this.value = 'message';
    }
  }

  // Slideshow
  function startSlideshow (slide_array, set_pause, set_effects_second) {
  
    // default pause, or override
    var pause = 8;
    if (set_pause != '') var pause = set_pause;
  
    // default effect time, or override
    var effect_seconds = 3;
    if (set_effects_second != '') var effect_seconds = set_effects_second;
    
    // internal vars
    var repeat = slide_array.length;
    var counter = 1;
    var looping = false;
    
    // pause between slides
    pause = (effect_seconds * 2) + pause;
    
    // play slideshow
    new PeriodicalExecuter(function(slide) {
  
        // preload next image
        if (looping == false) {
            loadSlide('slideshow_preload', slide_array[counter], effect_seconds, 'no');
        }
        
        // fade Image
        new Effect.Fade('slideshow', {duration:effect_seconds, fps:99, queue:{position:'end', scope:'ew_slideshow',
  limit:2}});
        
        // load text and image, delayed until after fade finished
        setTimeout('loadSlide(\'slideshow\', ' + slide_array[counter] + ', ' + effect_seconds + ', \'fade\')', (effect_seconds * 1000) + 500);
  
        // increment counter
        counter++;
  
        // reset counter / array if limit reached
        if (counter == repeat) {
            counter = 0;
            looping = true;
        }
        
    }, pause);
  } // end start slideshow
  
  // load Slide
  function loadSlide (el, slide_id, effect_seconds, effect) {
  
      // load new slide
      new Ajax.Updater(el, '/includes/page_slideshow_slide.php', {
        parameters: { id: slide_id }
      });
  
      // show slide with effect
      if (effect == 'fade') {
          new Effect.Appear('slideshow', {delay:0.2, duration:effect_seconds, fps:99, queue:{position:'end', scope:'ew_slideshow',
  limit:2}});
      }
  }