function att(id)
{
	var att=document.getElementById('description');
	var fea=document.getElementById('feature');
	var fea_1=document.getElementById('feature_1');
	var att_1=document.getElementById('description_1');
	att.style.display='none';
	fea.style.display='none';
	fea_1.style.backgroundColor='#262626';
	att_1.style.backgroundColor='#262626';
	var newid=id;
	newid=newid+'_1';
	document.getElementById(id).style.display='block';
	document.getElementById(newid).style.backgroundColor='#262626';
	return id;
}