HOTEL BILL PREPARATION IN JAVASCRIPT

PROGRAM:

<html>
<head>
    < script type = "text/javascript" > function findcost() {
     var major = document.getElementById("major");
     var Starters = document.getElementById("starters");
     var soft = document.getElementById("soft");
     var s = "Item \t \t \t Price \n--------------------------------\n";
     var totalcost = 0;

     for (var i = 0; i < major.options.length; i++) {
         var option = major.options[i];
         if (option.selected == true) {
             var price = parseInt(option.value);
             totalcost = totalcost + price;
             s = s + option.text + "\t \t" + price + "\n";
         }
     }
     for (var i = 0; i < starters.options.length; i++) {
         var option = starters.options[i];
         if (option.selected == true) {
             var price = parseInt(option.value);
             totalcost = totalcost + price;
             s = s + option.text + "\t \t" + price + "\n";
         }
     }
     var softdrinkindex = soft.selectedIndex;
     if (softdrinkindex != null) {
         var selectedsoftdrink = soft.options[soft.selectedIndex].text;
         var price = parseInt(soft.options[soft.selectedIndex].value);
         totalcost = totalcost + price;
         s = s + selectedsoftdrink + "\t \t" + price + "\n";
     }
     s = s + "\n\n Total Cost \t \t" + totalcost;
     document.getElementById("ordereditems").value = s;
 } < /script>

</head>
<body>
    <form name = "menuForm">
        <table border = "1" >
            <tr>
                <td colspan = "2" align = "center">
                    <h2>HOTEL TRAFFIC JAM </h2>
                </td>
            </tr>
             <tr>
                <td colspan = "2" align = "center">
                    <h2>Receipt</h2>
                </td>
            </tr>
            <tr>
                <td> Major Dishes:</td>
                <td>
                    <select id = "major" size = "3" multiple = "multiple">
                        <option value = "100"> Vegetable Pulav</option>
                        <option value = "150"> Hyderabadi Biriyani</option>
                        <option value = "50"> Roti with Curry </option>
                    </select>
                </td>
            </tr>
            <tr>
                <td> Starters </td>
                <td> <select id = "starters" size = "3" multiple = "multiple">
                    <option value = "80"> Gobi Manchurian </option>
                    <option value = "40"> Veg Clear Soup </option>
                    <option value = "30"> Salad </option>

                    </select>
                </td>
            </tr>
            <tr>
                <td>Soft Drinks</td>
                <td>
                    <select id = "soft" size = "4" multiple = "false">
                        <option value = "20"> Pepsi</option>
                        <option value = "25"> Coke </option>
                        <option value = "30"> Lime Soda </option>
                        <option value = "30"> Milk Shake </option>

                        </select>
                </td>
            </tr>
            <tr>
                <td colspan = "2" align = "center">
                    <textarea id = "ordereditems" rows = "10" cols = "40">
                  
                    </textarea>
                </td>
            </tr>
            <tr>
                <td>
                    <input type = "button" value = "Find total Cost" onclick = "findcost()" />
                </td>
                <td>
                    <input type = "reset" value = "Clear" />
                </td>
            </tr>
        </table>
    </form>
</body>
</html>

OUTPUT:

 

 

HOTEL TRAFFIC JAM

Receipt
Major Dishes:
Starters
Soft Drinks

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