Adding Vars?

[davelearning]

Hi all, is it possible to add vars together to come to a total?

 

Currently my valuesa re just printed in a line and not added together:

<script>
    function displayVals() {
      var serverCost = $("#server").val();
  var ramCost = $("#ram").val();
  var storageCost = $("#hdd").val();
  var ipCost = $("#ip").val();
  var totalCost = serverCost + ramCost + storageCost + ipCost;
  
      
      $("#price").html("<b>Server Cost:</b> $" + 
                  serverCost + "<br><b>Extra Ram:</b> $" +  ramCost
			  + "<br><b>Storage Space:</b> $" +  storageCost
			   + "<br><b>Extra IP's:</b> $" +  ipCost 
			   + "<br><br><b>Total Cost:</b> $" +  totalCost  );
    }

    $("select").change(displayVals);
    displayVals();

</script>

 

 

Thanks

[davelearning]

Solved

function displayVals() {
      var serverCost = $("#server").val();
  var fservercost = parseFloat(serverCost);
  var ramCost = $("#ram").val();
  var framcost = parseFloat(ramCost);
  var storageCost = $("#hdd").val();
  var fstorageCost = parseFloat(storageCost);
  var ipCost = $("#ip").val();
  var fipcost = parseFloat(ipCost);
  var totalValue = fservercost + framcost + fstorageCost + fipcost;
  
  
      
      $("#price").html("<b>Server Cost:</b> $" + 
                  serverCost + "<br><b>Extra Ram:</b> $" +  ramCost
			  + "<br><b>Storage Space:</b> $" +  storageCost
			   + "<br><b>Extra IP's:</b> $" +  ipCost 
			    + "<br><br><b>Total Cost:</b> $" +   totalValue );
    }

    $("select").change(displayVals);
    displayVals();