function cek_int_only(evt)
{
	evt = (evt) ? evt : event;
	var charCode = (evt.charCode) ? evt.charCode : ((evt.keyCode) ? evt.keyCode : ((evt.which) ? evt.which : 0));

	if (evt.shiftKey == true || evt.ctrlKey == true)
	{
		return false;
	}
	else if (charCode == 8 // backspace
		|| charCode == 9 // tab
		|| (charCode >= 35 && charCode <= 40) // end - down arrow
		|| charCode == 46 // delete
		|| (charCode >= 48 && charCode <= 57) // 0 - 9
		|| (charCode >= 96 && charCode <= 105)) // numpad 0 - 9
	{
		return true;
	}
	return false;
}

function cek_no_tag(evt)
{
	evt = (evt) ? evt : event;
	var charCode = (evt.charCode) ? evt.charCode : ((evt.keyCode) ? evt.keyCode : ((evt.which) ? evt.which : 0));
	//if (charCode == 8 || charCode == 9 || charCode == 20 || (charCode >= 32 && charCode <= 40) || charCode == 46 || (charCode >= 48 && charCode <= 57) || charCode == 59 || (charCode >= 65 && charCode <= 90) || (charCode >= 96 && charCode <= 111) || charCode == 144 || (charCode == 16 && (charCode != 188 || charCode != 190)) || charCode == 191)
	if ((charCode == 60) // <
		|| (charCode == 62)) // >
	{
		//return true;
		return false;
	}
	else
	{
		return true;
	}
	return false;
}

function disableRightClick(e)
{
	var message = "This site is the property of JAMKESMAS";

	if (!document.rightClickDisabled)
	{
		if (document.layers)
		{
			document.captureEvents(Event.MOUSEDOWN);
			document.onmousedown = disableRightClick;
		}
		else
		{
			document.oncontextmenu = disableRightClick;
		}
		return document.rightClickDisabled = true;
	}

	if (document.layers || (document.getElementById && !document.all))
	{
		if (e.which==2 || e.which==3)
		{
			alert(message);
			return false;
		}
	}
	else
	{
		alert(message);
		return false;
	}
}

function cek_no_shift_control(evt)
{
	evt = (evt) ? evt : event;
	var charCode = (evt.charCode) ? evt.charCode : ((evt.keyCode) ? evt.keyCode : ((evt.which) ? evt.which : 0));
	//if (charCode == 16 || charCode == 17)
	if (evt.shiftKey == true || evt.ctrlKey == true)
	{
		return false;
	}
	else
	{
		return true;
	}
	return false;
}

function cek_no_shift_click(e)
{
	if (e.shiftKey == 1)
	{
		return false;
	}
	else
	{
		return true;
	}
}