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XF 1.2 Add symbol to javascript output?

Discussion in 'Styling and Customization Questions' started by Dynamic, Nov 5, 2013.

  1. Dynamic

    Dynamic Well-Known Member

    Hi guys,

    I guess this is not really related to Xenforo but I am using it in my pages.

    I have made a simple calculator to estimate electricity bills. Now, there is a button that says "Calculate" and when it is clicked it displays the cost, eg ( 5.00 ) which is $5. What I am having trouble doing is getting the $ symbol in front of the number. Here is the code.

    <input type="button" name="calculate" id="area" size="4" onclick="calculateArea();" value="Calculate Daily Cost" class="checkout-btn">
    The onclick is what I would like to add the symbol to (in front of the calculateArea();)

  2. Jeremy

    Jeremy Well-Known Member

    Do you have access to the JavaScript?
  3. Dynamic

    Dynamic Well-Known Member

    Yeah :)

    Here it is.

    function calculateArea() {
      var primarylights =+document.getElementById("primarylights").value;
      var primarylightshours =+document.getElementById("primarylightshours").value;
      var secondarylights =+document.getElementById("secondarylights").value;
      var secondarylightshours =+document.getElementById("secondarylightshours").value;
      var powerheads =+document.getElementById("powerheads").value;
      var powerheadshours =+document.getElementById("powerheadshours").value;
      var primarypumps =+document.getElementById("primarypumps").value;
      var primarypumpshours =+document.getElementById("primarypumpshours").value;
      var secondarypumps =+document.getElementById("secondarypumps").value;
      var secondarypumpshours =+document.getElementById("secondarypumpshours").value;
      var returnpump =+document.getElementById("returnpump").value;
      var returnpumphours =+document.getElementById("returnpumphours").value;
      var heater =+document.getElementById("heater").value;
      var heaterhours =+document.getElementById("heaterhours").value;
      var chiller =+document.getElementById("chiller").value;
      var chillerhours =+document.getElementById("chillerhours").value;
      var misc =+document.getElementById("misc").value;
      var mischours =+document.getElementById("mischours").value;
      var cost =+document.getElementById("cost").value;
      var area = ((( primarylights * primarylightshours ) + ( secondarylights * secondarylightshours ) + ( powerheads * powerheadshours ) + ( primarypumps * primarypumpshours ) + ( secondarypumps * secondarypumpshours ) + ( returnpump * returnpumphours ) + ( heater * heaterhours ) + ( chiller * chillerhours ) + ( misc * mischours )) * cost)  / 1000;
      document.getElementById("area").value = area;
  4. Jeremy

    Jeremy Well-Known Member

    Set the element to be '$' + area.
  5. Dynamic

    Dynamic Well-Known Member

    Hey @Jeremy

    Thanks for that. It does not work ( I don't think I did it right ). I have

    document.getElementById("'$' + area").value = area;

    It does not display anything when the calculation is made.
  6. Jeremy

    Jeremy Well-Known Member

    document.getElementById("area").value = '$' + area;
    Dynamic likes this.
  7. Dynamic

    Dynamic Well-Known Member

    Thanks @Jeremy!

    It worked. Thanks very much :)

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