function setmyhomepage(){
   this.homepage.style.behavior='url(#default#homepage)';
   this.homepage.sethomepage('http://www.dongying.gov.cn');
}
function addmetofavorite(){ 
    window.external.AddFavorite('http://www.dongying.gov.cn','东营市人民政府'); 
}
function validate_form() {
  var str0,str1,str2,str3,str4,str;
  validity = true; // assume valid
  if (!check_email(document.Form2000.FriendEmail.value))
  { 
     validity = false; alert(' 朋友的Email可能打错了或为空的！');
  }
  if (validity)
  {
	str0="◆◆◆东营市人民政府网◆◆◆"
	str1="您好!";
	str2="您的朋友向您推荐东营市人民政府网新闻:";
	str3="“"+document.Form2000.Context+"”"+"\n链接网址是：";
	str4=this.location;
	str=str0+"\n"+str1+"\n"+str2+"\n"+str3+"\n"+str4+"\n";
	document.Form2000.Context.value=str;
	document.Form2000.action="mailto:"+document.Form2000.FriendEmail.value+"?\&Subject=Dongying News";
  }
  return validity;
}

function check_email(address) {

  if ((address == "") || (address.indexOf ('@') == -1) || (address.indexOf ('.') == -1))  return false;
  return true;
}