function preg_replace(search, replace, str, regswitch) {
	var regswitch = !regswitch ? 'ig' : regswitch;
	var len = search.length;
	for(var i = 0; i < len; i++) {
		re = new RegExp(search[i], regswitch);
		str = str.replace(re, typeof replace == 'string' ? replace : (replace[i] ? replace[i] : replace[0]));
	}
	return str;
}
function Rfilter(str) {
	return preg_replace(['\'','"', '<\/?[^>]*>'], ['','', ''], str);
}

function getCookie(name) { 
	 var arr,reg=new RegExp("(^| )"+name+"=([^;]*)(;|$)");
	 
	 if(arr=document.cookie.match(reg)) {
			return unescape(arr[2]); 
	 } else { 
		return null; 
	 }
}

function SetCommentiframeHeight(obj) {
	var win=obj;
	setInterval(function(){setIntervalSetCommentiframeHeight(win);},1000);
	//var IframeBodyHeight=getCookie('IframeBodyHeight');
	//win.height = IframeBodyHeight; 
}

function setIntervalSetCommentiframeHeight(win){
	var IframeBodyHeight=getCookie('IframeBodyHeight');
	win.height = IframeBodyHeight; 
}

function makeFrameReply() {
    if(document.getElementById('reply_button')) {
        //document.getElementById('reply_button').innerHTML = '<a href="#reply" style="color:#1536cc">我要评论(<span style="color:red"></span>)</a>';
    }
    var hash = Math.random();
    var comments = document.body.innerHTML ;
    var iscommentobj = null;
    iscommentobj = document.getElementById('iscomment');
    if(!iscommentobj) {
        return false;
    }
    if(iscommentobj.value != 1) {
        return false;
    }
    var articleid = comments.substring(comments.indexOf("<nodeid>")+8,comments.indexOf("</nodeid>")) ;
    var url = encodeURIComponent(window.location.href+'#'+articleid);
    document.getElementById('hiddenDivReply').innerHTML = '<a name="reply"/><iframe id="commentiframe" name="commentiframe" src="http://bbs.chinadaily.com.cn/plugin.php?id=reply:frame&url='+url+'&hash='+hash+'" frameborder="0" scrolling="auto" width="600" height="auto" style="overflow:hidden" onload="SetCommentiframeHeight(this)"></iframe>';

}
function addLoadEvent(func){
	var oldonload = window.onload,
		sta;
	if (typeof window.onload!='function'){
		window.onload = func;
		sta = 0;
	} else {
		sta = 1;
	}
	window.onload = function(){
		if (sta == 1){
			oldonload();
		}
		func();
	}
}
addLoadEvent(makeFrameReply);