function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.0
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && document.getElementById) x=document.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function MM_showHideLayers() { //v3.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v='hide')?'hidden':v; }
    obj.visibility=v; }
}
// *******************************
// added for search engine
// *******************************
function onMainSimpleSearch() {
  if (document.SimpleSearch.search.value  != "") {
      document.location = "http://search.gov.hk/search.html?ui_lang=en&ui_charset=utf-8&gp0=tid.stc_home&gp1=tid.stc_home&tpl_id=stc&txtonly=&web=this&query=" +
      document.SimpleSearch.search.value 
  } else {
      alert("Please enter keyword");
  }
}

function onMainSimpleSearch_tcchi() {
  if (document.SimpleSearch.search.value  != "") {
      document.location = "http://search.gov.hk/search.html?ui_lang=zh-hk&ui_charset=utf-8&gp0=tid.stc_home&gp1=tid.stc_home&tpl_id=stc&txtonly=&web=this&query=" +
  	  document.SimpleSearch.search.value 
  } else {
      alert("\u8ACB\u8F38\u5165\u95DC\u9375\u5B57");
  }
}