function switch_tab(id)
{
	try
	{//alert(id);
		for(i=1;i<4;i++)
		{
			//var tab = document.getElementById("tab"+i);
			var content = document.getElementById("so"+i);
			if(i == id)
			{
				content.style.display = "block";
				//tab.src = "images/index_title"+i+"b.jpg";
			}
			else
			{
				content.style.display = "none";
				//tab.src = "images/index_title"+i+"a.jpg";
			}
		}
	}
	catch(e)
	{
		alert(de.description);
	}
}
function CheckSearch()
{
	try
	{
		if(!CheckTextB(document.frmsearch.keyword,8,"请输入查询关键字！"))
			return false;
		return true;
	}
	catch(e)
	{
	
	}
	return false
}