var activeState = null, correctState = null, textState = null;
function setCorrectState (newState)
{
	correctState = newState;
}
function mouseOver (diffState)
{
	if (diffState != activeState)
	{
		document.getElementById(diffState).src=diffState+'2.gif';
	}
}
function mouseOut (diffState)
{
	if (diffState != activeState)
	{
		document.getElementById(diffState).src=diffState+'.gif';
	}
}
function mouseClick (diffState)
{
	if (activeState != null)
	{
		document.getElementById(activeState).src=activeState+'.gif';
		document.getElementById('answer' + activeState).style.display='none';
	}
	activeState = diffState;
	textState = 'answer'+activeState;
	if (activeState == correctState)
	{
		document.getElementById(activeState).src='greencheck.gif';
		document.getElementById(textState).style.display='block';
		
	}
	else
	{
		document.getElementById(activeState).src='redx.gif';
		document.getElementById(textState).style.display='block';
	}
}