function KeyDownHandler(btn)
	{
	if (document.all)
		{
		if (event.keyCode == 13)
			{
			event.returnValue = false;
			event.cancel = true;
			document.getElementById(btn).click()
			}
		}
	else if (document.getElementById)
		{
		if (event.which == 13)
			{
			event.returnValue = false;
			event.cancel = true;
			document.getElementById(btn).click()
			}
		}
	else if (document.layers)
		{
		if (event.which == 13)
			{
			event.returnValue = false;
			event.cancel = true;
			btn.click()
			}
		}
	else //(event.keyCode == 13)
		{
		event.returnValue = false;
		event.cancel = true;
		document.getElementById(btn).click()
		}
	}