function $(e) {return document.getElementById(e);}

function Show_titlenavTab(titlenavTabid_num,titlenavTabnum){
    for(var i=0;i<2;i++){document.getElementById("titlenavTabcontent_"+titlenavTabid_num+i).style.display="none";}
    for(var i=0;i<2;i++){document.getElementById("titlenavTabmenu_"+titlenavTabid_num+i).className="titleon";}
    document.getElementById("titlenavTabmenu_"+titlenavTabid_num+titlenavTabnum).className="titleoff";
    document.getElementById("titlenavTabcontent_"+titlenavTabid_num+titlenavTabnum).style.display="block";
}

function Show_BlkBlackTab(BlkBlackTabid_num,BlkBlackTabnum){
    for(var i=0;i<2;i++){document.getElementById("BlkBlackTabcontent_"+BlkBlackTabid_num+i).style.display="none";}
    document.getElementById("BlkBlackTabcontent_"+BlkBlackTabid_num+BlkBlackTabnum).style.display="block";
}


//页面文字缩放
function changeFontSize(inc){
	var div = document.getElementById('container_txt');
	var p = div.getElementsByTagName('p');
	for(n=0; n<p.length; n++){
		if(p[n].style.fontSize){
			var size = parseInt(p[n].style.fontSize.replace("px", ""));
		}else{
			var size = 12;
		}
		p[n].style.fontSize = size+inc + 'px';
	}
}

//打印页面
function doPrint(){
    var str="<html>\n<head>\n";
	var css;
    var strdoPrint="doPrint()";css="\n<link href=\"http://www.china.com.cn/fangtan/style-pt.css\" rel=\"stylesheet\" type=\"text/css\"/><\/style>";
        str +=  '<meta http-equiv="Content-Type" content="text/html; charset=utf-8">';
		str +=  css;
        str +=  '\n<title>'+document.title+'<\/title>';
        str +=  "\n<\/head>\n<body onLoad='window.print()'>";
		str +=  '<div><img src="http://images.china.cn/images1/en/2009home/logo.gif" \/><\/div>';
        str +=  '<h1>'+$('title').innerHTML+'<\/h1>';
		str +=  $('container_txt').innerHTML;
        str +=  "<div><a href='javascript:history.back()'>Back<\/a> <a href='javascript:window.print()'>Print<\/a><\/div>";
        str +=  "<\/body><\/html>";
        document.write(str);
        document.close();
}

function showMenu() {
    document.getElementById('Layer1').style.display = 'block';
}

function hideMenu() {
    document.getElementById('Layer1').style.display = 'none';
}

//搜索
function dosearch(){
  var searchform=document.forms["searchform"];
  if(trim(searchform.searchText.value) == "")
	{
		alert("Please input a keyword!");
		return false ;
	}
  var topic=searchform.topic;var nsite;
  for(i=0;i<topic.length;i++){
  if(topic[i].checked) nsite=topic[i].value;
  }
  switch(nsite)
   {
   case "1":
     	searchform.action="http://search.china.org.cn/hlftiweb/en/index.jsp";
		searchform.searchText.name="searchText";
     	break;
   case "2":
     	searchform.action="http://wiki.china.org.cn/wiki/index.php/Special:Search";
		searchform.searchText.name="search";
     	break;
   case "3":
     	searchform.action="http://answers.china.org.cn/listSearchIndex.action";
		searchform.searchText.name="searchText";
     	break;
   case "4":
     	searchform.action="http://cityguide.china.org.cn/shop/search.php";
		searchform.searchText.name="keyword";
		AddElement(searchform,"searchsort","shop");
		AddElement(searchform,"searchtype","name");
		AddElement(searchform,"area","all");
		AddElement(searchform,"ordersort","review");
		AddElement(searchform,"ordertype","desc");
		AddElement(searchform,"searchsubmit","yes");
     	break;
  case "5":
     	searchform.action="http://archive.china.org.cn:8080/archive/search.jsp";
		searchform.searchText.name="title";
     	break;
   default:
   }
  }
  function AddElement(form,name,value){
  var newInput = document.createElement("input"); 
  newInput.type="hidden"; 
  newInput.name=name;
  newInput.value=value;
  form.appendChild(newInput);
  }
  function trim(s){return s.replace(/(^\s*)|(\s*$)/g,"");}