function selectTag(selfObj){
	// 操作标签
	var tag = document.getElementById("tags").getElementsByTagName("li");
	var taglength = tag.length;
	for(i=0; i<taglength; i++){
		tag[i].className = "";
	}
	selfObj.parentNode.className = "selectTag";
}
// 转发功能
function transmit(trant_article_id,trant_user_id,article_content,article_image){
	var regex=/<.*?>/g;
	var form = document.getElementById("blog_form");
	var content = document.getElementById("article_content");
	article_content= filterHtml(article_content);
	article_content=article_content.replace("&#39;","'");
	
	form.article_type.value="1";
	form.trant_article_id.value = trant_article_id;
	form.trant_user_id.value = trant_user_id;
	form.article_content.value = article_content;
	form.article_image.value = article_image;
	//设置光标到末尾
	getSelectPos(content);
}
//回复功能
function reply(reply_article_id,reply_user_id,article_content){
	var form = document.getElementById("blog_form");
	var content = document.getElementById("article_content");
	form.article_type.value = "2";
	form.reply_article_id.value = reply_article_id;
	form.reply_user_id.value = reply_user_id;
	form.article_content.value = article_content;
	//设置光标到末尾
	getSelectPos(content);
}

//清除文本框内容
var tit="<s:text name='search.value'/>";
function clearText(object){
	if(object.value=tit){
		object.value="";
	}
	return true;
}
//清除查找朋友文本框内容
var inv ="<s:text name='find.friend.input.value'/>";
function clearFindFriendText(object){
	if(object.value=inv){
		object.value="";
	}
	return true;
}
//清除邀请朋友文本框内容  需要国际化
var textInv ="<s:text name='invate.email.input'/>";
function clearInv(object){
	if(object.value=textInv){
		object.value="";
	}
	return true;
}
// 定义光标到最后
function getSelectPos(content){
	//IE
	 if(content.createTextRange ){
		 var rng = content.createTextRange(); //新建textRange对象
		 rng.moveStart('character', content.value.length); //更改rng对象的开始位置
		 rng.collapse( true ); //光标移动到范围结尾
         rng.select();//选中
         content.focus();
     }/*非IE*/else if( content.setSelectionRange ){
		var r=content.setSelectionRange;
		content.focus();  //先聚集
		content.setSelectionRange( content.value.length ,  content.value.length );  //设光标
     }
}
//防止空提交
function check_empty(obj,info){
	if($.trim(obj) ==''){
		alert(info);
		return false;
	}else{
		return true;
		}
}