How to calculate the total for below code

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<html>

<head>

<script language="javascript">

var i=0,ta="T",qa="Q",ra="R",k=0.0,j=0.0;
 
function addRowToTable()

{

  var tbl = document.getElementById('ad');

  var lastRow = tbl.rows.length - 6;

  var iteration = lastRow ;

  var row = tbl.insertRow(lastRow);
 
  var cellRight = row.insertCell(0);

  var el = document.createElement('input');

  el.type = 'text';

  el.name = 'I' + iteration;

  el.id = 'I' + iteration;

  el.size = 20;
 
  var cellRight1 = row.insertCell(1);

  var el1 = document.createElement('input');

  el1.type = 'text';

  el1.name = 'Q' + iteration;

  el1.id = 'Q' + iteration;

  el1.size = 14;

  el1.onblur='add1.focus()';
 
  var cellRight2 = row.insertCell(2);

  var el2 = document.createElement('input');

  el2.type = 'text';

  el2.name = 'R' + iteration;

  el2.id = 'R' + iteration;

  el2.size = 15;

  el2.onblur='res()';
 
  var cellRight3 = row.insertCell(3);

  var el3 = document.createElement('input');

  el3.setAttribute("type","text");

  el3.name = 'T' + iteration;

  el3.id = 'T' + iteration;

  el3.size = 15;
 
 el2.onkeypress=keyPressTes;

 document.getElementById("ti").value=iteration;
 
 cellRight.appendChild(el);

 cellRight1.appendChild(el1);

 cellRight2.appendChild(el2);

 cellRight3.appendChild(el3);

 el.focus();

}
 
function keyPressTes()

{ 

    var key;

   if(window.event) 

   key = window.event.keyCode; 

   if(key == 08 )

   {

       alert("1");

       res();

       alert("2");

   }

}
 
function removeRowFromTable()

{

  var tbl = document.getElementById('ad');

  var lastRow = tbl.rows.length;

  if (lastRow > 8) 

  {

  var tt = lastRow - 7;

  ta="T";

  ta=ta+tt;

  tbl.deleteRow(lastRow - 7);

  document.getElementById("ti").value=lastRow - 8;

  ta="T";

  i--;

 }

}

</script>

<script language='javascript'> 

function res()

{

for (var a=0; a<=i; a=a+1) 

{

 ta="T"+a;

 qa="Q"+a;

 ra="R"+a;

 var qt=document.getElementById(qa).value;

 var rt=document.getElementById(ra).value;

 var st=qt*rt;

 document.getElementById(ta).value=st;

 ta="T";

 qa="Q";

 ra="R";

 i++;

 qt=rt=st=0;

}

}

</script>

</head>

<body>

<form name="cnew">

<table id="ad">

  <tr>

    <td width="123" align="left" height="1"><b>Item</b></td>

    <td width="86" align="left" height="1"><b>QUANTITY</b></td>

    <td width="86" align="left" height="1"><b>RATE</b></td>

    <td width="86" align="left" height="1"><b>TOTAL</b></td>

  </tr>

  <tr>

    <td width="123" align="left" height="5">

<input type="text" name="I0" size="20" id="I0"></td>

    <td width="86" align="left" height="5">

<input type="text" name="Q0" size="14" id="Q0"></td>

    <td width="86" align="left" height="5">

<input type="text" name="R0" size="15" id="R0" onblur="res()"></td>

    <td width="86" align="left" height="5">

<input type="text" name="T0" size="14" id="T0"></td>

  </tr>

</table>

<p align="center"><input type="button" id="add1" value="Add" onclick="addRowToTable()" tabindex="8" name="Add" />&nbsp;

<input type="button" value="Remove" onclick="removeRowFromTable();" />&nbsp; <input type="submit" value="Submit" name="B2">

</form>

</body>

</html>

Jun 7 '07 #1

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Welcome to TSDN!

Use parseInt to parse a string into an integer.

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Jun 8 '07 #2

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