Stop people from copyng and paste my blog articles

Here i want to show you guys how to Stop people from copyng and paste my blog articles and thats all so simple to make it So lets say now
1. Clik Design
2. Edit HTML
3. Tip on Expand Widget Templates and search </head>
4. Add this code just before </head>

<!-- Disable Copy and Paste-->
<script language='JavaScript1.2'>
function disableselect(e){
return false
}
function reEnable(){
return true
}
document.onselectstart=new Function (&quot;return false&quot;)
if (window.sidebar){
document.onmousedown=disableselect
document.onclick=reEnable
}
</script>
5. Save Template

Down!!. thats not so hard right