// JavaScript Document
<!--
var err ;
prevKey = 0;

function disablerightclick(e)
{
	if (event.button == 2 || event.button == 3)
	{
		alert("Invalid Request!");
		return false;
	}
}

function disablekeyboardnavigation(e)
{

	if ( event.keyCode == 8 || event.keyCode == 27 || event.keyCode == 112 || event.keyCode == 114 || event.keyCode == 117 || event.keyCode == 93 || (event.altKey && (event.keyCode == 37 || event.keyCode == 39) ) || (event.ctrlKey && event.keyCode == 82 )  || event.keyCode == 116 || event.keyCode == 121 || event.ctrlKey )
	{
		if( prevKey == 18 && ( event.keyCode == 37 || event.keyCode == 39 ) )
		{
			event.keyCode = 0;
			prevKey = 0;
			alert("Sorry, Navigation is not Allowed!");
			//top.TPUtl.DisplayError( "E_Invalid_Key" );
			return false;
		}
		if (prevKey = 16 && event.keyCode == 121 )
		{
			prevKey = event.keyCode;
			return false;
		}
		prevKey = event.keyCode;
		if( event.keyCode == 116 || event.keyCode == 117 || event.keyCode == 93 )
		{
			event.keyCode = 0;
			return false;
		}
		if( (event.keyCode!=8) || ( event.keyCode==8 && event.srcElement.type != "text" ) )
		{
			if( event.keyCode==8 && event.srcElement.type == "textarea" )
			{
				return true;
			}
			else
			{
				return false;
			}
		}
	}
		prevKey = event.keyCode;
		return true;
}
document.onkeydown = disablekeyboardnavigation;
window.onkeydown = disablekeyboardnavigation;
document.onmousedown = disablerightclick;
window.onmousedown = disablerightclick;
//-->