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Editorial Team
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Asked: 2026-06-13T11:04:47+00:00

here for each row each student marks have to be entered ID ——– MID1

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here for each row each student marks have to be entered

ID ——– MID1 Marks — MID2 Marks
79 ——– 20 ———— 40
63 — —- 35 ———— 27

ID—————> student ID

MID1 marks—> 1st mid marks

MID2 marks—->2nd mid marks

validate for marks greater than 40, we have to enter less than 40 marks so, it is validating for 1 row only

here the code it is,

<html>


<script type="text/javascript">

function validate()
{
var m1=document.getElementById("m1").value;
if(m1>40)
{
alert("Marks cannot exceed 40");
document.getElementById("m1").value="";
document.getElementById("m1").focus();
return false;
}
else
    {
        return true;
    }
   }

   </script>

 <body>

 <td><input id="m1" type=text size=18 onchange="return validate()"> </td>

 </body>
 </html>

i require all the rows have to be validated while entering the marks…..

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1 Answer

  1. Editorial Team

    You should try this

    function validate(field)
{
    var m1=Number(field.value);
    if(m1>40)
    {
       alert("Marks cannot exceed 40");
       field.value="";
       field.focus();
       return false;
    }
    else
    {
       return true;
    }
}

    and in html

    <input id="m1" type="text" size="18" onchange="return validate(this)">

    And Provide different ids to your each input. as same id for multiple controls are not valid html.

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