I am having file bookissueadd.php..... in which i am having tag
<td height="21">Issue Charges</td>
<td><div id="txtcharges"></b>
</div></td>
in another php file i am doing some calculation and get my value in variable $cal
getbookname.php
$cal = $bookprice/100*$perval;
now my question is how can i put the value of $cal in front of html tag ISSUE CHARGES
thanks
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