function set_color(id, col){
	var el=document.getElementById('item'+id);
	el.style.background=col;
}
function faq_hide(id){
	var o1=document.getElementById('faq'+id+'_show');
	var o2=document.getElementById('faq'+id+'_hide');
	o1.style.display='block';
	o2.style.display='none';
}

function faq_show(id){
	var o1=document.getElementById('faq'+id+'_show');
	var o2=document.getElementById('faq'+id+'_hide');
	o1.style.display='none';
	o2.style.display='block';
}