function showDirection()
{
var sourcePcode1 = document.getElementById('txtPostcodeA').value;
var sourcePcode2 = document.getElementById('txtPostcodeB').value;
var destPcodeFull = document.getElementById('myDestPcode').value.replace(' ', '+');
var sourcePcodeFull = sourcePcode1;
				
if(sourcePcode2 != '')
{
	sourcePcodeFull += '+' + sourcePcode2;
}
window.open('http://maps.google.co.uk/maps?saddr=' + sourcePcode1 + '&daddr=' + destPcodeFull + '&hl=en', 'googleDirections', 'status=0, toolbar=0, menubar=0,resizable=1, height=600, width=800, top=0, left=0');
}