function onlyNumber()
{
	
	if ((event.keyCode>=48&&event.keyCode<=57)||window.event.keyCode == 46)
	{
		window.event.returnValue =  true;
	}
	else
	{
		window.event.returnValue =  false;
	}
	
	
}
function onlyFormulary()
{
	returnV=false;
	if (event.keyCode==41 ||event.keyCode==40  || event.keyCode==43 || event.keyCode==45 || event.keyCode==42 || event.keyCode==47)
	{
		returnV=true;
	}
	if ((event.keyCode>=48&&event.keyCode<=57)||window.event.keyCode == 46)
	{
		returnV =  true;
	}
	//alert(event.keyCode)
	window.event.returnValue=returnV
}