01.<script type="text/javascript">
02.function calcfunc(i) {
03. var val1 = parseFloat(document.getElementById("id1" + i).value);
04. var val2 = parseFloat(document.getElementById("id2" + i).value);
05. var Discount = 0;
06. if(document.getElementById("Discount" + i).value !=''){
07. Discount = parseFloat(document.getElementById("Discount" + i).value);
08. }
09.
10. if(Discount >0){
11. var result = ((val1*val2)-((val1*val2)*Discount/100)) ;
12. if (isFinite(result)) {
13. document.getElementById("id3" + i).value = result;
14. }
15. }else{
16. var result = (val1*val2);
17. if (isFinite(result)) {
18. document.getElementById("id3" + i).value = result;
19. }
20. }
21.
22.}
23.</script>
24.<table>
25.<tr><td>ID1</td><td>ID2</td><td>DISCOUNT</td><td>ID3</td></tr>
26.<tr>
27. <td><input type="text" id="id11" onkeyup="calcfunc(1)"></td><td><input type="text" id="id21" onkeyup="calcfunc(1)"></td>
28. <td><input type="text" id="Discount1" onkeyup="calcfunc(1)"></td><td><input type="text" id="id31"></td>
29.</tr>
30.<tr>
31. <td><input type="text" id="id12" onkeyup="calcfunc(2)"></td><td><input type="text" id="id22" onkeyup="calcfunc(2)"></td>
32. <td><input type="text" id="Discount2" onkeyup="calcfunc(2)"></td><td><input type="text" id="id32"></td>
33.</tr>
34.</table>
