//复制到剪切板(IE&FF)
function copyToClipboard(txt) {  
    if(window.clipboardData) {    
        window.clipboardData.clearData();    
        window.clipboardData.setData("Text", txt);    
         alert("你已复制本站链接，请发给QQ/MSN等好友");
    } else if(navigator.userAgent.indexOf("Opera") != -1) {    
        window.location = txt;    
    } else if (window.netscape) {    
        try {    
            netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");    
        } catch (e) {    
            alert("被浏览器拒绝！\n请在浏览器地址栏输入'about:config'并回车\n然后将'signed.applets.codebase_principal_support'设置为'true'");    
        }    
    var clip = Components.classes['@mozilla.org/widget/clipboard;1'].createInstance(Components.interfaces.nsIClipboard);    
    if (!clip)    
        return;    
    var trans = Components.classes['@mozilla.org/widget/transferable;1'].createInstance(Components.interfaces.nsITransferable);    
    if (!trans)    
        return;    
    trans.addDataFlavor('text/unicode');    
    var str = new Object();    
    var len = new Object();    
    var str = Components.classes["@mozilla.org/supports-string;1"].createInstance(Components.interfaces.nsISupportsString);    
    var copytext = txt;    
    str.data = copytext;    
    trans.setTransferData("text/unicode",str,copytext.length*2);    
    var clipid = Components.interfaces.nsIClipboard;    
    if (!clip)    
        return false;    
    clip.setData(trans,null,clipid.kGlobalClipboard);    
    alert("你已复制本站链接，请发给QQ/MSN等好友");    
    }    
}   

//设置文本框水印
function SetWaterText(id,text){
var el=document.getElementById(id);
var tx=el.value;
bindEvent(el,"focus",function(){
el.style.color="#000";var tx1=el.value;
if(tx1==text)
{el.value='';}
});
bindEvent(el,"blur",function(){
var tx1=el.value;
if(tx1=="")
{el.value=text;el.style.color="";}
});
}

//快速咨询事件
function QuickFind(){
    var el=document.getElementById("txtFindPolice");
    var tx=el.value;
    if(tx=="" || tx=="有困难，找警察  输入问题标题...")
    {
        alert("问题不能为空！");
        el.focus();
        return;
    }
    else
    {
        window.forSugguestWindow = window.open('http://bbs.tiexue.net/AddPost.aspx?ForumID=197');
        var isWrited=false;
        while(!isWrited)
        {
            try
            {
                window.forSugguestWindow.document.getElementById('PostSubject').value=tx;
                isWrited=true;
            }catch(e){}
        }
    }
}
//绑定事件
function bindEvent(obj,type,fn){
    if(window.attachEvent){
    obj['e'+type+fn] = fn;
            obj[type+fn] = function(){obj['e'+type+fn]( window.event );}
            obj.attachEvent( 'on'+type, obj[type+fn] );

    }
    else if(window.addEventListener)
    { obj.addEventListener(type,fn,false)     }
    else
    {obj["on"+type]=fn}
}

//收藏本页
function Savemark()
{
	var title = '铁血警察 – 探讨警察事务 – 分享警察生活 – 铁血网';
	var url=location.href;
	if (window.sidebar) window.sidebar.addPanel(title, url,"");
	else if( window.opera && window.print ){
	var mbm = document.createElement('a');
	mbm.setAttribute('rel','sidebar');
	mbm.setAttribute('href',url);
	mbm.setAttribute('title',title);
	mbm.click();}
	else if( document.all ) window.external.AddFavorite( url, title);
}

//设为首页
function SetHomePage(obj){
    obj.style.behavior='url(#default#homepage)';
    obj.setHomePage('http://jingcha.tiexue.net/');
}
//Tab切换
 function tabs(id){
    var root=document.getElementById(id);
    var el=root.getElementsByTagName("div");
    for(var j=0;j<el.length;j++){
        if(j==0){
        el[j].style.display="";
        }
        else{
         el[j].style.display="none";
        }
      }
    var tab=root.getElementsByTagName("ul");
    var lis= tab[0].getElementsByTagName("li");
     for(var i=0;i<lis.length;i++){
        bindEvent(lis[i],"click",function(){
        var obj=this;
        for(var k=0;k<lis.length;k++){
        var o=lis[k];
        o.setAttribute("class","");
        }
        obj.setAttribute("class","box3qh2");
        var tag=obj.getElementsByTagName("a")[0].getAttribute("href");
        var tags=tag.split('#');
        tag=tags[1];
        for(var j=0;j<el.length;j++){
        var id=el[j].getAttribute("id");
        if(id==tag){
        el[j].style.display="";
        }
        else{
         el[j].style.display="none";
        }
        }
        });
        }
       
 }
 //根据class获取元素
 function getElementsByClassName(element,n) { 
    var el = [],
        _el = element.getElementsByTagName('*');
    for (var i=0; i<_el.length; i++ ) {
        if (_el[i].className == n ) {
            el[el.length] = _el[i];
        }
    }
    return el;
}

view = function(tag,position,clickTag)
{
    var obj;
    if (position=="left")
    {
        obj = document.getElementById("forlefttag");
    }
    else
    {
        obj = document.getElementById("forrighttag");
    }
    var objs = obj.getElementsByTagName("div");
    for (var i=0; i<objs.length; i++)
    {
    try
    {
        if (objs[i].getAttribute("id").indexOf("content")!=-1)
        {
            objs[i].style.display="none";
        }
        }catch(e){}
    }
    document.getElementById(tag).style.display="block";
    var tags = clickTag.parentNode.parentNode.getElementsByTagName("li");
    for (var i=0; i<tags.length; i++)
    {
        tags[i].className ="";
    }
    clickTag.parentNode.className ="box3qh2";
}

function TxSearch()
{
	var wordname = document.getElementById("searchBaidu");
	if (wordname.value == "")
	{
		alert('搜索的内容不能为空！');
		wordname.focus();
		return false;
	}
	window.open ("http://www.baidu.com/baidu?word="+wordname+ "&tn=bds&cl=3&ct=2097152&si=tiexue.net&s=on");
}