i have this code by php
Code: Select all
<?php
session_start();
if(isset($_GET["n1"]))
$_SESSION["n1"]=$_GET["n1"];
if(isset($_GET["n2"]))
$_SESSION["n2"]=$_GET["n2"];
if(isset($_GET["n3"]))
$_SESSION["n3"]=$_GET["n3"];
$sum=intval($_SESSION["n1"])+intval($_SESSION["n2"])+intval($_SESSION["n3"]);
$pers=($sum*20)/100;
?>
Code: Select all
<select name="ctl00$ContentPlaceHolder$DL_01_0100" id="ctl00_ContentPlaceHolder_DL_01_0100" class="DLClass" onChange="showUser('add.php?n1='+this.value)" size="1" dir="ltr">
<option value="0">none</option>
<option value="185">1st choice</option>
</select>
<select name="ctl00$ContentPlaceHolder$DL_01_0101" id="ctl00_ContentPlaceHolder_DL_01_0101" class="DLClass" onChange="showUser('add.php?n1='+this.value)" size="1" dir="ltr">
<option value="0">none</option>
<option value="370">1st choice</option>
</select>
<select name="ctl00$ContentPlaceHolder$DL_01_0102" id="ctl00_ContentPlaceHolder_DL_01_0102" class="DLClass" onchange="showUser('add.php?n1='+this.value)" size="1" dir="ltr">
<option value="0">none</option>
<option value="235">1st choice</option>
<option value="333">2nd choice</option>
</select>
Code: Select all
<td id="SubTotalTD" style="border: 1px dashed #C0C0C0;" dir="rtl" width="155" height="25">
<p dir="rtl" id="txtHint"><? echo $sum; ?></td>why