/* 滚动字幕 */
function startmarquee(elementID,h,n,speed,delay){
	var	t = null;
	var	box = '#' + elementID;
	$(box).hover(function(){
		clearInterval(t);
		}, function(){
		t = setInterval(start,delay);
	}).trigger('mouseout');
	function start(){
		$(box).children('ul:first').animate({marginTop:	'-='+h},speed,function(){
			$(this).css({marginTop:'0'}).find('li').slice(0,n).appendTo(this);
		})
	}
}

/* 缩略图 */
jQuery.fn.LoadImage=function(scaling,width,height,loadpic){
    if(loadpic==null)loadpic="../images/msg_img/loading.gif";
return this.each(function(){
   var t=$(this);
   var src=$(this).attr("src")
   var img=new Image();
   img.src=src;
   //自动缩放图片
   var autoScaling=function(){
    if(scaling){
     if(img.width>0 && img.height>0){ 
           if(img.width/img.height>=width/height){ 
               if(img.width>width){ 
                   t.width(width); 
                   t.height((img.height*width)/img.width); 
               }else{ 
                   t.width(img.width); 
                   t.height(img.height); 
               } 
           } 
           else{ 
               if(img.height>height){ 
                   t.height(height); 
                   t.width((img.width*height)/img.height); 
               }else{ 
                   t.width(img.width); 
                   t.height(img.height); 
               } 
           } 
       } 
    } 
   }
   //处理ff下会自动读取缓存图片
   if(img.complete){
    autoScaling();
      return;
   }
   $(this).attr("src","");
   var loading=$("<img alt=\"加载中...\" title=\"图片加载中...\" src=\""+loadpic+"\" />");
  
   t.hide();
   t.after(loading);
   $(img).load(function(){
    autoScaling();
    loading.remove();
    t.attr("src",this.src);
    t.show();
	//$('.photo_prev a,.photo_next a').height($('#big-pic img').height());
   });
  });
}

/* 复制当前连接 */
function copy_url() {
	var clipBoardContent = "";
	clipBoardContent += document.title; //获取标题
	clipBoardContent += "\n";
	clipBoardContent += this.location.href; //获取地址
	if (window.clipboardData) {
		window.clipboardData.setData("Text", clipBoardContent);
	}
	else if (window.netscape) {
		netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
		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 = clipBoardContent;
		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("复制成功,您可以发送给你的好友啦!");
}

/* 添加收藏 */
function add_favorite(){
    if (document.all){
        try{
            window.external.addFavorite(window.location.href,document.title);
        }catch(e){
            alert( "加入收藏失败，请使用Ctrl+D进行添加" );
        }
        
    }else if (window.sidebar){
        window.sidebar.addPanel(document.title, window.location.href, "");
     }else{
        alert( "加入收藏失败，请使用Ctrl+D进行添加" );
    }
}

/* 设为首页 */
function set_homepage(){
    if (document.all){
        document.body.style.behavior='url(#default#homepage)';
          document.body.setHomePage(window.location.href);
    }else if (window.sidebar){
        if(window.netscape){
            try{
                netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
            }catch (e){
                alert( "该操作被浏览器拒绝，如果想启用该功能，请在地址栏内输入 about:config,然后将项 signed.applets.codebase_principal_support 值该为true" );
            }
        }
        var prefs = Components.classes['@mozilla.org/preferences-service;1'].getService(Components. interfaces.nsIPrefBranch);
        prefs.setCharPref('browser.startup.homepage',window.location.href);
    }else{
        alert('您的浏览器不支持自动自动设置首页, 请使用浏览器菜单手动设置!');
    }
}

/* 添加用户收藏 */
function add_user_favorite(title) {
	$.getJSON('http://localhost/phpcms/api.php?op=add_favorite&title='+encodeURIComponent(title)+'&url='+encodeURIComponent(location.href)+'&'+Math.random()+'&callback=?', function(data){

		if(data.status==1)	{
			$("#favorite").html('收藏成功');
		} else {
			alert('请登录');
		}
	});
}