Disable Right-click in HTAs or Web Pages – Lab Core

Disabling right-click on your webpage or in your HTA forms and splash screens

You should insert the following code in the head of your HTML document, between the <HEAD></HEAD> tags.

<SCRIPT LANGUAGE="JavaScript">  
<!-- Disable  
function disableselect(e){  
return false  
}  

function reEnable(){  
return true  
}  

//if IE4+  
document.onselectstart=new Function ("return false")  
document.oncontextmenu=new Function ("return false")  
//if NS6  
if (window.sidebar){  
document.onmousedown=disableselect  
document.onclick=reEnable  
}  
//-->  
</script>