Prohibit IE to use right click JS code

<!-- Prohibit right clicking:  -->
document.body.oncontextmenu=function rightClick(){ window.event.returnValue= false;}
<!-- Do not save as:  --> 
<noscript><iframe src=*.html></iframe></noscript> 
<!--  Disable text selection:  --> 
<script type="text/javascript"> 
var omitformtags=["input", "textarea", "select"] 
omitformtags=omitformtags.join("|") 
function disableselect(e){ 
if (omitformtags.indexOf(e.target.tagName.toLowerCase())==-1) 
return false 
} 
function reEnable(){ 
return true 
} 
if (typeof document.onselectstart!="undefined") 
document.onselectstart=new Function ("return false") 
else{ 
document.onmousedown=disableselect 
document.onmouseup=reEnable 
} 
</script> 
<!--  Disable right click : --> 
<script> 
function stop(){ 
return false; 
} 
document.oncontextmenu=stop; 
</script>