Stupid people, help me wiith these ppl Options

[SimplyStarDust]

Ok these people that r messing around with me r saying bad things on my site and like most people i dont want that on my site...anyways is there anyway i can block that person from my site or something?...plz help

[boysbr3akhearts]

or if u wana change it so its not ppl allowed so that its ppl blocked u can use this one

CODEBOX: -> right click -> copy/paste <!-- begin code provided by createblog.com --><br /><br /><script><br /><br />// Private Blogging<br />// By Paul Chen<br />//  --- Coyote<br />// Put your list of (exact) names here.<br />// Make sure they are all lowercase.<br />// "join" = unregistered viewers<br />// Go to end of the script and change<br />// the custom alert message.<br /><br />var blocked = new Array(<br />"USERNAME HERE",<br />"USERNAME HERE",<br />"USERNAME HERE",<br />"USERNAME HERE",<br />"USERNAME HERE"<br />)<br /><br />var links = document.getElementsByTagName('a');<br />name="";<br /><br />for(i=0;i<links.length;i++)<br />{<br />if(links[i].innerText.match(/xanga/i) && links[i+2].innerText.match(/sign out/i)){<br /> i++;<br /> if(links[i].href.match('/private/home.aspx') || links[i].innerText.match('join')){<br />  name = links[i].innerText.toLowerCase();<br />  break;<br /> }  <br />} <br />}<br />enter=true;<br /><br />for(j=0;j<blocked.length;j++)<br />{<br />users = blocked[j];<br />if(users.indexOf(name)==0 && users.length==name.length){<br /> enter=false;<br /> break;<br />}<br />}<br /><br />if(enter!=false){<br />alert('Sorry, this is a private blog!'); //change the message<br />history.go(-1);<br />}<br /></script><br /><br /><!-- end code provided by createblog.com -->

I tried that and it didn't work...