var xmlhttp;
function hide(moo){
	document.getElementById(moo).style.visibility = 'hidden'; 
}
function show(moo){
	document.getElementById(moo).style.visibility = 'visible'; 	
}
function data(url,data,id){
	if (window.XMLHttpRequest){//real browsers
		xmlhttp=new XMLHttpRequest();
	}else{//old ie
		xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
	}
	xmlhttp.onreadystatechange=function(){
		if (xmlhttp.readyState==4&&xmlhttp.status==200){
			if(xmlhttp.responseText=='r'){
				location.reload('true');
			}else{
				document.getElementById(id).innerHTML=xmlhttp.responseText;
			}
		}
	}
	xmlhttp.open('POST',url,true);
	xmlhttp.setRequestHeader("Content-type","application/x-www-form-urlencoded");
	xmlhttp.send(data);
}
function addlink() {
	document.form.maintext.value=document.form.maintext.value+'<a title="" href=""></a>';
}
function addimage() {
	document.form.maintext.value=document.form.maintext.value+'<div class="center"><a href="image/" title=""><img src="image/" width="*" height="*" alt=""></img></a></div>';
}
function addcenter() {
	document.form.maintext.value=document.form.maintext.value+'<div class="center"></div>';
}