var isnn,isie
if(navigator.appName=='Microsoft Internet Explorer') //check the browser
 {  
  isie=true 
 }

if(navigator.appName=='Netscape')
 {  
  isnn=true 
 }

function right() //to trap right click button 
{
	if (isnn && (event.which == 3 || event.which == 2 ))
		return false;
	else if (isie && (event.button == 2 || event.button == 3)) 
	{
		alert("Sorry, you do not have permission to right click on this page.");
		
		return false;
	}
		return true;
}

function key(e)   
{	
	if(isie) 
	{
	 var chr =window.event;
	    chr.cancelBubble=true;
		chr.returnValue=false;
		chr.keyCode=505;
			if (chr.keyCode==505)
			{
			    return false;
			}
	}
	else
	 {
		e.cancelBubble=true;
	 	e.returnValue=false;
	 		if (e.keyCode)
			{
			return false;
			}
	 }   
}


function clickIE()
 {
    if (document.all)
        {
        (message);return false;
        }
 }
 
function clickNS(e) 
{
if(document.layers||(document.getElementById&&!document.all))
 {
  if (e.which==2||e.which==3) 
   {
    (message);return false;
   }
  }
 }
 if (document.layers)
     {
      document.captureEvents(Event.MOUSEDOWN);document.  onmousedown=clickNS;
     }
  else
     {
      document.onmouseup=clickNS;document.oncontextmenu  =clickIE;
     }
   document.oncontextmenu=new Function("return false")