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Below is the function in the vbscript which will round the number up to two digits after decimal number.

<Script language="VBScript">

Function Roundnumber(Decnumber,numlength)
    
    Roundnumber = FormatCurrency(Decnumber,numlength,,,0)     

    Roundnumber = FormatNumber(Decnumber,numlength,,,0)   

End Function

</Script>

<Script language="JavaScript">

function roundnumjavascript(number,length)

{

       document.getElementById('textBox1').value= Roundnumber(number,length)

}

</Script>

In HTML

<input type="text" id="textBox1"/>

<input type="button" id="btnround" value="Roundnum" onclick="roundnumjavascript(document.getElementById('textBox1').value,2);"/>