var seid = '1';
function SetSearchBar(Nid,key){
	var btntext = '搜索 ';
	eval("document.getElementById('a"+seid+"').className='searchNoSelect'");  //导航
	eval("document.getElementById('a"+Nid+"').className='searchSelect'");
	eval("document.getElementById('k"+seid+"').style.display='none'");  //关键词
	eval("document.getElementById('k"+Nid+"').style.display=''");  //关键词
	switch(Nid){
		case '1':
			btntext += '装修知识';
			break;
		case '2':
			btntext += '供求信息';
			break;
		case '3':
			btntext += '设计图库';
			break;
		case '4':
			btntext += '装饰材料';
			break;
		case '5':
			btntext += '企业库';
			break;
		}
	document.getElementById('btn').value= btntext;
	document.getElementById('f').value = key;
	seid = Nid;
}