function validatePostcode(theForm)
{	
		
	theForm.postcode.value = theForm.postcode.value.replace(/^\s*|\s*$/g,"");
	if(theForm.branchlist.selectedIndex == 0 && !theForm.postcode.value.match("^[a-zA-Z]{0,1}[a-zA-Z0-9]{0,3} [0-9][a-zA-Z][a-zA-Z]$")
	   && theForm.location[0].checked){
		alert("Please enter a valid UK postcode");
		theForm.postcode.focus();
		return false;
	}
}
function popupwin(pg,w,h,s)
{
	var top = (screen.height-h)/2;
	var left= (screen.width -w)/2;
	pwin=window.open(pg, 'pwin', 'toolbar=0, location=0, directories=0, status=0, menubar=0, left='+left+', top='+top+', scrollbars='+s+', resizable=1, width='+w+', height='+h);
	pwin.focus();
}