function downloadintro(introNumber){	//提示文字的显示
	if (introNumber == 31){				//IntroNumber的十位为"3"开头的是"PKCS10申请"部分的提示
		document.all["downloadintro"].innerHTML = "请妥善保存该密码,证书废除时使用";
	}
	if (introNumber == 32){
		document.all["downloadintro"].innerHTML = "请将私钥保护密码牢记并保存妥当,以保障您的证书安全";
	}

	if (introNumber == 1){				//IntroNumber的十位为"0"开头的是"证书下载"部分的提示
		document.all["downloadintro"].innerHTML = "软盘证书下载: 只能保存到<font color=\"red\">软盘</font>介质;只下载证书,不下载私钥";
	}
	if (introNumber == 2){
		document.all["downloadintro"].innerHTML = "下载本人证书: 需<a href=\"../CMBDownload.htm\" target=\"_blank\">安装证书管理器</a>;<BR>\"私钥保护密码\"是您在提交\"在线证书申请\"时输入的自定义密码";
	}
	if (introNumber == 3){
		document.all["downloadintro"].innerHTML = "下载Email证书: 直接保存到客户端浏览器中";
	}
	if (introNumber == 4){
		document.all["downloadintro"].innerHTML = "下载他人证书: 需<a href=\"../CMBDownload.htm\" target=\"_blank\">安装证书管理器</a>";
	}
	if (introNumber == 5){
		document.all["downloadintro"].innerHTML = "下载根证书: 请在弹出对话框中选择“打开”以安装根证书";
	}

	if (introNumber == 21)				//IntroNumber的十位为"2"开头的是"证书查询"部分的提示
	{
		document.all["downloadintro"].innerHTML = "证书查询: 查看证书信息及下载他人证书";
	}
	if (introNumber == 22)
	{
		document.all["downloadintro"].innerHTML = "证书黑名单查询: 查询证书废除情况";
	}
	if (introNumber == 23)
	{
		document.all["downloadintro"].innerHTML = "证书状态查询: 根据信封序列号查看证书状态";
	}

	if (introNumber == 41)				//IntroNumber的十位为"4"开头的是"证书更新"部分的提示
	{
		document.all["downloadintro"].innerHTML = "证书更新: 如需要详细操作说明,请点击鼠标右键<BR>选择\"目标另存为..\"下载<a href=\"../../include/UserGuide_CertUpdate.doc\">证书更新操作手册</a>";
	}
}

function downloadintro_clear(){
	//document.all["downloadintro"].innerHTML = "<font color=red>请把鼠标移至箭头上查看每项操作的提示</font>";
}



function WriteLayer_SavingCert(){	//隐藏SavingCert层
	try{
		var LayerContent = '<link href="../main.css" rel="stylesheet" type="text/css"><div id="Layer_SavingCert" style="position:absolute; left:200px; top:150px; width:350px; height:50px; z-index:1; background-color: #efefef; layer-background-color: #BBDDFF; overflow: visible; border: 1px none #000000; ">';
		LayerContent += '<table width="100%" height="100%" border="0" cellpadding="0" cellspacing="0"><tr><td width="100%" height="100%" align="center" valign="middle">操作正在执行,请稍候...</td></tr></table></div>';
		document.write(LayerContent);
	}catch(Ex){}
}
function hiddenLayer_SavingCert(){	//隐藏SavingCert层
	try{
		document.all["Layer_SavingCert"].style.display = 'none';
	}catch(Ex){}
}
function showLayer_SavingCert(){	//显示SavingCert层
	try{
		document.all["Layer_SavingCert"].style.display = '';
	}catch(Ex){}
}
function LayerChangeInnerHTML_SavingCert(InnerStr){	//改变SavingCert层内文字
	try{
		document.all["Layer_SavingCert"].innerHTML = '<table width="100%" height="100%" border="0" cellpadding="0" cellspacing="0"><tr><td width="100%" height="100%" align="center" valign="middle">'+InnerStr+'</td></tr></table>' ;
	}catch(Ex){}
}

//去掉字符串左边的空格
function lTrim(str)
{
  if (str.charAt(0) == " ")
  {
    //如果字串左边第一个字符为空格
    str = str.slice(1);//将空格从字串中去掉
    //这一句也可改成 str = str.substring(1, str.length);
    str = lTrim(str);    //递归调用
  }
  return str;
}
//去掉字串右边的空格
function rTrim(str)
{
  var iLength;
  
  iLength = str.length;
  if (str.charAt(iLength - 1) == " ")
  {
    //如果字串右边第一个字符为空格
    str = str.slice(0, iLength - 1);//将空格从字串中去掉
    //这一句也可改成 str = str.substring(0, iLength - 1);
    str = rTrim(str);    //递归调用
  }
  return str;
}
//去掉字串两边的空格
function trim(str)
{
  return lTrim(rTrim(str));
}

function check_query(){	//查询证书时至少需要用户输入一个查询条件
	var UserInputedFlag = 0;
	if (trim(frm_certquery.envsn.value) != "")
	{
		UserInputedFlag = 1;
	}
	if (trim(frm_certquery.certsn.value) != "")
	{
		UserInputedFlag = 1;
	}
	if (trim(frm_certquery.passnumber.value) != "")
	{
		UserInputedFlag = 1;
	}
	if (trim(frm_certquery.x121address.value) != "")
	{
		UserInputedFlag = 1;
	}
	if (UserInputedFlag == 1)
	{
		return true;
	}else{
		alert("请至少输入一种查询项的内容");
		return false;
	}
}