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  • January 20, 2012 at 8:53 am #36227
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    I have created a very simple calculator for the price of graden studio and I am want to replace the drop down to checkboxes and I would like the prices to be automatically created with out having to click the calculate button.

    Any Help will be great.

    Here is my javascript

    function temp(form)
    
{
    
var l = parseFloat(form.Length.value, 10);
    
var w = parseFloat(form.Width.value, 10);
    
var lam = parseFloat(form.Laminate.value, 10);
    
var dec = parseFloat(form.Decking.value, 10);
    
var oak = parseFloat(form.oak.value, 10);
    
var bi = parseFloat(form.bifold.value, 10);
    
var open = parseFloat(form.oakopening.value, 10);
    
var slide = parseFloat(form.sliding.value, 10);
    
var pic = parseFloat(form.picture.value, 10);
    
var alopen = parseFloat(form.alopening.value, 10);
    
var elc = parseFloat(form.electric.value, 10);
    
var clad = parseFloat(form.cladding.value, 10);
    
var light = parseFloat(form.downlights.value, 10);
    
var fou = parseFloat(form.foundation.value, 10);
    
var del = parseFloat(form.delivery.value, 10);
    

    

    
var t = 0;
    
var sm = 0;
    
sm = l * w;
    
et = (lam * sm) + dec + oak + bi + open + slide + pic + alopen + elc + (clad * sm) + light + del +fou;
    
bt = sm * 600 ;
    
vt = bt + et;
    
vit = vt * 1.2;
    
form.SquareM.value = sm;
    
form.StandardTotal.value = bt;
    
form.BasicTotal.value = bt;
    
form.ExtrasTotal.value = et;
    
form.VatTotal.value = vt;
    
form.VatInTotal.value = vit;
    
}

    Here is my html

         

    


    
Enter Length:
    

    


    
Enter Width:
    

    


    
Square metres :
    

    

    


    

    

    
£
    
 is the standard cost; now add in any optional extras from list below
    

    

    

    


    

    

    Standard Specification

    


      

    •  
          Steel box base frame 
       

      • 

    •  
         SIPS Wall construction 151mm

      • 

    •  
          SIPS Floor construction
       

      • 

    •  
          SIPS Roof construction

      • 

    •  
          UPVC doors standard
       

      • 

    •  
          Plastered internal finish
       

      • 

    •  
          Or melamine internal finish
       

      • 

    •  
          Protected vapour barrier
       

      • 

    •  
          EPDM roof covering  
       

      • 

    •  
          Guttering and downpipe
       

      • 

    •  
          Pressure treated cladding

      • 

      

    •  
          Carpet tiles 

      • 

    •  
      Standard floor to eves height 2.5ms 

      • 

    •  
          Delivery to site free within 100mile 
       radius of HD4 

      • 


    


    


    


    

    Optional Extras

    


    

    Laminate Flooring psm: 

    

    

    


    

    

    

    


    

    0.5m deep front decking: 

    


    

    


    

    Oak Picture window 760 x 1950: 

    


    

    


    

    Oak Bi-fold doors 1800 x 2100: 

    


    

    


    

    Oak opening window 1200 x 795: 

    


    

    


    

    Aluminium Sliding door 1800 x 2100: 

    


    

    


    

    Aluminium picture window 760 x 2100 : 

    


    

    

    


    

    Aluminium opening window 900 x 450 : 

    

     

    

    


    

    Electric pack – lights, sockets, fuse box : 

    

     

    

    

    


    

    Western Red Cedar Cladding psm : 

    

     

    

    


    

    Exterior downlights 4 : 

    

     

    

    


    

    Foundations for steel box frame : 

    


    

    


    

    Delivery over 100m up to 300m radius : 

    

     

    


    

    
onClick=temp(this.form)>

    

    


    


    

    

    


    
Total Standard Specification    £
    

    


    
Total Optional Extras       £
    

    


    
Total for your Garden Room  £
    
(exc vat)
    


    
Total for your Garden Room  £
    
(inc vat)
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