function dropDownNav(form) {
 var index = form.getElementsByTagName('select')[0].selectedIndex;
 var href = form.getElementsByTagName('option')[index].value;
 window.location = href;
 return false;
}

var gE = function (id) {
   return document.getElementById(id);
}

function searchInput(input) {
 if (input.value == 'search this site') { input.value = ''; }
 else if (input.value == '') { input.value = 'search this site'; }
}

/**

$(function() { 
 $('#sitefamily form').submit(function() { return dropDownNav(this); } );
 $('#search').focus(function() { searchInput(this); } ).blur( function(){ searchInput(this); } );
});
**/

function next() {
  change(position+1);
  position++;
  switcher();
}

function previous() {
  change(position-1);
  position--;
  switcher();
}

function change(newPosition){
  document.getElementById('image').src = images[newPosition][0];
  document.getElementById('image').alt = images[newPosition][1];
  document.getElementById('caption').innerHTML = images[newPosition][2];
}

function switcher() {
document.getElementById('position').innerHTML = position+1;
  if (position==0) {
    document.getElementById('previous').className = 'hide';
    document.getElementById('seperator').className = 'hide';
    document.getElementById('next').className = 'inline';
  }
  else if (position==(images.length-1)) {
    document.getElementById('previous').className = 'inline';
    document.getElementById('seperator').className = 'hide';
    document.getElementById('next').className = 'hide';
  }
  else {
    document.getElementById('previous').className = 'inline';
    document.getElementById('seperator').className = 'inline';
    document.getElementById('next').className = 'inline';
  }
}