function dropdownSwapTo(model,x) {
  dropdownHideAll();
  dropdownOver();
  $('slider-'+model).style.display='block';
  new Effect.Morph($('slider'),{ style:'left:'+(156+x)+'px;', duration:0.2});
}

function dropdownOut() {
  $('over').value='';
}

function dropdownOver() {
  if ( $('over').value !='1' )
	{
	  $('over').value='1';
	  new PeriodicalExecuter( function(pe) {
		if ( $('over').value!='1' ) {
		  dropdownHideAll();
		  pe.stop();
		}
	  }
							  , 2);  
	}
}

function dropdownHideAll() {
  var e=document.getElementsByClassName('slider-item');
  for (var i = 0, j = e.length; i < j; i++) {
	e[i].style.display='none';
  }
}