forms - Javascript Two calculators on one site -


hi have code on site`

<body>     <script>         function calcresult() {             document.getelementbyid('result').innerhtml = '';             var num1 = new number(document.getelementbyid('txt1').value);             var num2 = new number(document.getelementbyid('txt2').value);             if (isnan(num1) || isnan(num2)) {                 alert('one or both inputs not number');             } else {                 document.getelementbyid('result').innerhtml = num1 * num2;             }         }         window.onload = function() {             document.getelementbyid('btncalc').onclick = calcresult;         }     </script>     <div>         enter value 1         <input type="text" id="txt1" />         <br />enter value 2         <input type="text" id="txt2" />         <br />         <button id="btncalc">calculate difference</button>         <div id="result"></div>     </div>     <script>         function test() {             document.getelementbyid('re').innerhtml = '';             var n1 = new number(document.getelementbyid('od1').value);             var n2 = new number(document.getelementbyid('od2').value);             if (isnan(n1) || isnan(n2)) {                 alert('one or both inputs not number');             } else {                 document.getelementbyid('re').innerhtml = n1 - n2;             }         }         window.onload = function() {             document.getelementbyid('od').onclick = test;         }     </script>     <div>         enter value 1         <input type="text" id="od1" />         <br />enter value 2         <input type="text" id="od2" />         <br />         <button id="od">calculate difference</button>         <div id="re"></div>     </div> </body>

the problem first form isnt working , second working. on site want many of these calculator, dont know why not working. gradefull if me find result.

write javascript code in 1 script tag. try following code

<body>     <script>                     function calcresult(){              document.getelementbyid('result').innerhtml = '';             var num1 = new number(document.getelementbyid('txt1').value);             var num2 = new number(document.getelementbyid('txt2').value);             if(isnan(num1) || isnan(num2)){                 alert('one or both inputs not number');             } else {                 document.getelementbyid('result').innerhtml = num1 * num2;             }         }            function test(){             document.getelementbyid('re').innerhtml = '';             var n1 = new number(document.getelementbyid('od1').value);             var n2 = new number(document.getelementbyid('od2').value);             if(isnan(n1) || isnan(n2)){                 alert('one or both inputs not number');             } else {                 document.getelementbyid('re').innerhtml = n1 - n2;             }         }         window.onload=function(){             document.getelementbyid('btncalc').onclick = calcresult;             document.getelementbyid('od').onclick = test;         }     </script>     <div>         enter value 1 <input type="text" id="txt1" /><br />         enter value 2 <input type="text" id="txt2" /><br />         <button id="btncalc">calculate difference</button>         <div id="result"></div>     </div>      <div>         enter value 1 <input type="text" id="od1" /><br />         enter value 2 <input type="text" id="od2" /><br />         <button id="od">calculate difference</button>         <div id="re"></div>     </div> </body>

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