function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}
function MM_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}
function add()
{
  window.external.addFavorite("http://www.cyx.sh.cn/","chx");
  return false;
}
function sethomepage()
{
  document.body.style.behavior='url(#default#homepage)';
  document.body.setHomePage('http://www.cyx.sh.cn/');
  return false;
}

//begin ben
function showban(){
	if (document.getElementById("ban").style.display = "none") {
    document.getElementById("ban").style.display = "block";
    document.getElementById("ban1").style.display = "none";
    document.getElementById("ban2").style.display = "none";
  }
  else{
	document.getElementById("ban").style.display = "block";  
  }
}

function showban1(){
	if (document.getElementById("ban1").style.display = "none") {
    document.getElementById("ban1").style.display = "block";
    document.getElementById("ban").style.display = "none";
    document.getElementById("ban2").style.display = "none";
  }
    else{
	document.getElementById("ban1").style.display = "block";
  }
}

function showban2(){
	if (document.getElementById("ban2").style.display = "none") {
    document.getElementById("ban2").style.display = "block";
    document.getElementById("ban").style.display = "none";
    document.getElementById("ban1").style.display = "none";
  }
    else{
	document.getElementById("ban2").style.display = "block";
  }
}
//begin ben_1
function formchk1()
	{
		if(form_pro3.feedback_username.value=="")
		{
		alert("请输入您的主题");
		return false;	
		}
		if(form_pro3.feedback_show.value=="")
		{
		alert("请输入内容");
		return false;
		}
	}