function switchRiddleOptions(id)
{

		document.getElementById("negative_feedback").style.display="none";	
	curr=id.substr(id.length-1,id.length);
	//alert(curr);
	for(i=1; i<4;i++)
		{
			document.getElementById("riddle_option"+i).src=((i==curr)?"images/inpage/riddle_but_blue.gif":"images/inpage/riddle_but_yellow.gif")
		}	
}

function switchRiddleOptionsBySpan(num)
{
	switchRiddleOptions("riddle_option"+num)
}

function checkRiddle()
{
if(document.getElementById("riddle_option"+riddleRight).src.indexOf("images/inpage/riddle_but_blue.gif")!=-1)
{
	document.getElementById("positive_feedback").style.display="block";		
	document.getElementById("negative_feedback").style.display="none";	
	for(i=1; i<4;i++)
		{
			document.getElementById("riddle_option"+i).onclick=null;
		}	
}
else
{
	document.getElementById("positive_feedback").style.display="none";		
	document.getElementById("negative_feedback").style.display="block";	
}

document.getElementById("riddle_feedback").style.display="block";
}