function convert(currency)
{
	if (currency == "P")
	{
		E = document.myform.euro.value / 0.856;
		if(isNaN(E))
		{
			alert('Please enter a number');
			document.myform.reset();
		}
		else
		{
			document.myform.pound.value = Math.round(E*100)/100;
		}
	}
	else 
	{
		P=(document.myform.pound.value) * 0.856;
		if(isNaN(P))
		{
			alert('Please enter a number');
			document.myform.reset();
		}
		else
		{		
			document.myform.euro.value = Math.round(P*100)/100;
		}
	}
}