<!--
	  var fpUnit = 2;
	  var dpUnit = 1.5;
	  var dpNecQty = 25;
	  
	  function setPerComputer()
	  {
	    dpUnit = 1.5;
	    document.getElementById('licenceLabel').innerHTML = 'Number of Computers';
	    document.getElementById('ga_dp_unit').innerHTML = dpUnit.toFixed(2);
	    doCalc();
	    return true;
	  }
	  
	  function setPerUser()
	  {
	    dpUnit = 1;
	    document.getElementById('licenceLabel').innerHTML = 'Number of Users';
	    document.getElementById('ga_dp_unit').innerHTML = dpUnit.toFixed(2);
	    doCalc();
	    return true;
	  }
	    
      function isNumberKey(evt)
      {
         var charCode = (evt.which) ? evt.which : evt.keyCode
         if (charCode > 31 && (charCode < 48 || charCode > 57))
            return false;
				
         return true;
      }
	  
	  function doCalc()
      {
		var qty = 0;
		
		if (document.getElementById('ctl00_mainContent_ga_quantity').value != '') qty = parseInt(document.getElementById('ctl00_mainContent_ga_quantity').value);
			
		if (qty > dpNecQty)
			{
			qty = qty - dpNecQty;
			document.getElementById('ga_fp_qty').innerHTML = dpNecQty;
			document.getElementById('ga_fp_cost').innerHTML = (dpNecQty * fpUnit).toFixed(2);
			document.getElementById('ga_dp_qty').innerHTML = qty;
			document.getElementById('ga_dp_cost').innerHTML = (qty * dpUnit).toFixed(2);
			var total = ((dpNecQty * fpUnit) + (qty * dpUnit)).toFixed(2);
			document.getElementById('ga_total').innerHTML = total;
			document.getElementById('convertLink').href = "http://uk.finance.yahoo.com/currency-converter/convert?amt=" + total + "&from=GBP&to=USD";
			}
		else
			{
			document.getElementById('ga_fp_qty').innerHTML = qty;
			document.getElementById('ga_fp_cost').innerHTML = (qty * fpUnit).toFixed(2);
			document.getElementById('ga_dp_qty').innerHTML = '0';
			document.getElementById('ga_dp_cost').innerHTML = '0.00';
			var total = (qty * fpUnit).toFixed(2);
			document.getElementById('ga_total').innerHTML = total;
			document.getElementById('convertLink').href = "http://uk.finance.yahoo.com/currency-converter/convert?amt=" + total + "&from=GBP&to=USD";
			}
					
         return true;
      }
	  
	  function validateForm()
		{
		if (document.getElementById('ctl00_mainContent_holderName').value == '')
			{
			alert("Please enter a name for the licence holder.");
			return false;
			}
		
		return true;
		}
      //-->