function $(id) {
	return document.getElementById(id);
}

function ctlent(event) {
	if((event.ctrlKey && event.keyCode == 13) || (event.altKey && event.keyCode == 83)) {
		$("submit").click();
	}
}

function addquote(obj,strAuthor){
	var text = $(obj).innerHTML;
	text = text.replace(/alt\=(\"|)([^\"\s]*)(\"|)/g,"> $2 <");
	text = text.replace(/\<[^\<\>]+\>/g,"\n");
	text = text.replace(/ +/g," ");
	text = text.replace(/\n+/g,"\n");
	text = text.replace(/^\n*/gm,"");
	text = text.replace(/^\s*/gm,"");
	text = text.replace(/\n*$/gm,"");
	text = text.replace(/\s*$/gm,"");
	text = text.replace(/&lt;/g,"<");
	text = text.replace(/&gt;/g,">");
	text = text.replace(/&nbsp;&nbsp;/g,"  ");
	text = text.replace(/&amp;/g,"&");
	$("content").value += "[quote="+strAuthor+"]"+text+"[/quote]";
	$("content").focus();
}

function checkform() {
	if ($('username') && $('username').value == "") {
		alert("请输入您的名字.");
		return false;
	}
	if ($('content') && $('content').value == "")	{
		alert("请输入内容.");
		return false;
	}
	if ($('clientcode') && $('clientcode').value == "")	{
		alert("请输入验证码.");
		return false;
	}
	if (((postminchars != 0 && $('content').value.length < postminchars) || (postmaxchars != 0 && $('content').value.length > postmaxchars))) {
		alert("您的评论内容长度不符合要求。\n\n当前长度: "+$('content').value.length+" 字节\n系统限制: "+postminchars+" 到 "+postmaxchars+" 字节");
		return false;
	}			
	$('submit').disabled = true;
	return true;
}

function checkloginform() {
	if ($('username').value == "") {
		alert("请输入您的名字.");
		return false;
	}
	if ($('password').value == "" || ($('confirmpassword') && $('confirmpassword').value == "")) {
		alert("请输入密码和确认密码.");
		return false;
	}
	if ($('confirmpassword') && $('password').value !== $('confirmpassword').value) {
		alert("两次输入密码不一样,请重新输入.");
		return false;
	}
	if ($('clientcode') && $('clientcode').value == "")	{
		alert("请输入验证码.");
		return false;
	}
	return true;
}

function showhide(obj) {
	$(obj).style.display = $(obj).style.display == "none" ? "block" : "none";
}

function showajaxdiv(action, url, width) {
	var x = new Ajax('statusid', 'XML');
	x.get(url, function(s) {
		if($("ajax-div-"+action)) {
			var divElement = $("ajax-div-"+action);
		} else {
			var divElement = document.createElement("DIV");
			divElement.id = "ajax-div-"+action;
			divElement.className = "ajaxdiv";
			document.body.appendChild(divElement);
		}
		divElement.style.cssText = "width:"+width+"px;";
		var userAgent = navigator.userAgent.toLowerCase();
		var is_opera = (userAgent.indexOf('opera') != -1);
		var clientHeight = scrollTop = 0; 
		if(is_opera) {
			clientHeight = document.body.clientHeight /2;
			scrollTop = document.body.scrollTop;
		} else {
			clientHeight = document.documentElement.clientHeight /2;
			scrollTop = document.documentElement.scrollTop;
		}
		divElement.innerHTML = s.lastChild.firstChild.nodeValue;
		divElement.style.left = (document.documentElement.clientWidth /2 +document.documentElement.scrollLeft - width/2)+"px";
		divElement.style.top = (clientHeight +　scrollTop - divElement.clientHeight/2)+"px";
	});	
}

function setCopy(content){
	if(navigator.userAgent.toLowerCase().indexOf('ie') > -1) {
		clipboardData.setData('Text',content);
		alert ("该地址已经复制到剪切板");
	} else {
		prompt("请复制网站地址:",content); 
	}
}

function fiximage(thumbs_size) {
	var max = thumbs_size.split('x');
	var fixwidth = max[0];
	var fixheight = max[1];
	imgs = document.getElementsByTagName('img');
	for(i=0;i<imgs.length;i++) {
		w=imgs[i].width;h=imgs[i].height;
		if(w>fixwidth) { imgs[i].width=fixwidth;imgs[i].height=h/(w/fixwidth);}
		if(h>fixheight) { imgs[i].height=fixheight;imgs[i].width=w/(h/fixheight);}
	}
}

function ubbShowObj(strType,strID,strURL,intWidth,intHeight)
{
	var objPrefix="bShow";
	var tmpstr="";
	var bSwitch = false;
	//Reverse the State
	bSwitch = document.getElementById(objPrefix+strID).value;
	bSwitch	=~bSwitch;
	document.getElementById(objPrefix+strID).value = bSwitch;
	if(bSwitch){
		//Code for already shown
		//修改媒体不显示路径//document.getElementById(strID).innerHTML = "<a href=\""+strURL+'" target="_blank">'+strURL+"</a>";
		document.getElementById(strID).innerHTML = "";

	}else{
		//Code for not shown
		switch(strType){
			case "swf":
				tmpstr='<br /><object codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=7,0,0,0" classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" width="'+intWidth+'" height="'+intHeight+'"><param name="movie" value="'+strURL+'" /><param name="quality" value="high" /><param name="AllowScriptAccess" value="never" /><embed src="'+strURL+'" quality="high" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" width="'+intWidth+'" height="'+intHeight+'" /></object>';
				break;
			case "wmp":
				tmpstr='<br /><object classid="clsid:22D6F312-B0F6-11D0-94AB-0080C74C7E95" codebase="http://activex.microsoft.com/activex/controls/mplayer/en/nsmp2inf.cab#Version=6,0,02,902" type="application/x-oleobject" standby="Loading..." width="'+intWidth+'" height="'+intHeight+'"><param name="FileName" VALUE="'+strURL+'" /><param name="ShowStatusBar" value="-1" /><param name="AutoStart" value="true" /><embed type="application/x-mplayer2" pluginspage="http://www.microsoft.com/Windows/MediaPlayer/" src="'+strURL+'" autostart="true" width="'+intWidth+'" height="'+intHeight+'" /></object>';
				break;
			case "rm":
				tmpstr='<br /><object classid="clsid:CFCDAA03-8BE4-11cf-B84B-0020AFBBCCFA" width="'+intWidth+'" height="'+intHeight+'"><param name="SRC" value="'+strURL+'" /><param name="CONTROLS" VALUE="ImageWindow" /><param name="CONSOLE" value="one" /><param name="AUTOSTART" value="true" /><embed src="'+strURL+'" nojava="true" controls="ImageWindow" console="one" width="'+intWidth+'" height="'+intHeight+'"></object>'+
        '<br /><object classid="clsid:CFCDAA03-8BE4-11cf-B84B-0020AFBBCCFA" width="'+intWidth+'" height="32" /><param name="CONTROLS" value="StatusBar" /><param name="AUTOSTART" value="true" /><param name="CONSOLE" value="one" /><embed src="'+strURL+'" nojava="true" controls="StatusBar" console="one" width="'+intWidth+'" height="24" /></object>'+'<br /><object classid="clsid:CFCDAA03-8BE4-11cf-B84B-0020AFBBCCFA" width="'+intWidth+'" height="32" /><param name="CONTROLS" value="ControlPanel" /><param name="AUTOSTART" value="true" /><param name="CONSOLE" value="one" /><embed src="'+strURL+'" nojava="true" controls="ControlPanel" console="one" width="'+intWidth+'" height="24" autostart="true" loop="false" /></object>';
				break;
			case "qt":
				tmpstr=strURL+'<br /><embed src="'+strURL+'" autoplay="true" loop="false" controller="true" playeveryframe="false" cache="false" scale="TOFIT" bgcolor="#000000" kioskmode="false" targetcache="false" pluginspage="http://www.apple.com/quicktime/" />';
		}
		document.getElementById(strID).innerHTML = tmpstr;
	}
}