function currency() {
	  TopDistance = (screen.height/2)-300;
	  LeftDistance = (screen.width/2)-200;
	  wn=window.open('/utils/currency.cfm','currency','width=400,height=320,left='+LeftDistance+',top='+TopDistance);
}

function amortisation() {
	  TopDistance = (screen.height/2)-300;
	  LeftDistance = (screen.width/2)-295;
	  wn=window.open('/utils/loan.cfm','loancalculator','width=590,height=600,scrollbars=yes,left='+LeftDistance+',top='+TopDistance);
}