function writeLeftBar()
{
	document.write ("<div class='quickEntryLink'><a href='certificate.aspx'>数字证书</a></div>" +
			"<div class='quickEntryLink'><a href='business.aspx'>电子商务</a></div>" +
			"<div class='quickEntryLink'><a href='signature.aspx'>电子签名法</a></div>");
}