function qie_overi(index)
{
	for(var i=1;i<6;i++)
	{
		document.getElementById("qie"+i.toString()).className ='font12-blue';
		document.getElementById("q"+i.toString()).style.display = 'none';
	}
	document.getElementById("q"+index.toString()).style.display = 'block';
	if( index.toString() == "5" )
	{
		document.getElementById("qie"+index.toString()).className ='font12-blue3';	
	}
	else
	{
		document.getElementById("qie"+index.toString()).className ='font12-blue2';
	}

}