var mySlideDC0;
	var mySlideDC1;
	var mySlideDC2;
	var mySlideDC3;
	var eimg_srcDC = 'images/enlarge.gif';
	var simg_srcDC = 'images/shrink.gif';
	
	var maxDC = 3;
	var poolDC;
	
	function addOptionDC()
	{
		for(var i=0; i<poolDC.length; i++)
		{
			if(poolDC[i] == 0)
			{
				showOptionDC(i);
				break;
			}
		}
	}
	
	function showOptionDC(idx)
	{
		switch(idx)
		{
			case 0:
				mySlideDC1.toggle();
				poolDC[0] = 1;
				break;
			case 1:
				mySlideDC2.toggle();
				poolDC[1] = 1;
				break;
			case 2:
				mySlideDC3.toggle();
				poolDC[2] = 1;
				$('DCtoggle0').disabled = true;
				break;
		}
	}
	
	function checkAndRemoveItemDC(idx)
	{
		var wordDC;
		switch(idx)
		{
			case 1:
				poolDC[0] = 0;
				mySlideDC1.hide();
				word = document.getElementById("DCqueryWord1");
				word.value = "";
				break;
			case 2:
				poolDC[1] = 0;
				mySlideDC2.hide();
				word = document.getElementById("DCqueryWord2");
				word.value = "";
				break;
			case 3:
				poolDC[2] = 0;
				mySlideDC3.hide();
				word = document.getElementById("DCqueryWord3");
				word.value = "";
				break;
		}
	}
	
	window.addEvent('domready', function() {
		poolDC = new Array(max);
		for(var i=1; i<poolDC.length; i++)
		{
			poolDC[i] = 0;
		}
		poolDC[0] = 1;
		
		mySlideDC0 = new Fx.Slide('DCoption0');
		
		mySlideDC1 = new Fx.Slide('DCoption1');
		mySlideDC2 = new Fx.Slide('DCoption2').hide();
		mySlideDC3 = new Fx.Slide('DCoption3').hide();
		
		
		$('DCtoggle0').addEvent('click', function(e){
			e = new Event(e);
			addOptionDC();
			e.stop();
		});

		$('DCtoggle1').addEvent('click', function(e){
					e = new Event(e);
					checkAndRemoveItemDC(1);
					$('DCtoggle0').disabled = false;
					e.stop();
		});
		
		$('DCtoggle2').addEvent('click', function(e){
					e = new Event(e);
					checkAndRemoveItemDC(2);
					$('DCtoggle0').disabled = false;
					e.stop();
		});
		
		$('DCtoggle3').addEvent('click', function(e){
					e = new Event(e);
					checkAndRemoveItemDC(3);
					$('DCtoggle0').disabled = false;
					e.stop();
		});
	});