Modifying Table Columns

 
/*
JavaScript Bible, Fourth Edition
by Danny Goodman 

John Wiley & Sons CopyRight 2001
*/


<HTML>
<HEAD>
<TITLE>Modifying Table Columns</TITLE>
<STYLE TYPE="text/css">
THEAD {background-color:lightyellow; font-weight:bold}
.rankCells {background-color:lightgreen; font-weight:bold}
#myTABLE {background-color:bisque}
</STYLE>
<SCRIPT LANGUAGE="JavaScript">
var theTable, theTableBody
function init() {
    theTable = (document.all) ? document.all.myTABLE : 
        document.getElementById("myTABLE")
    theTableBody = theTable.tBodies[0]
}
function insertColumn(form) {
    var oneRow, newCell, rank
    if (theTable.tHead) {
        oneRow = theTable.tHead.rows[0]
        newCell = oneRow.insertCell(0)
        newCell.innerHTML = "Ranking"
    }
    rank = 1
    for (var i = 0; i < theTableBody.rows.length; i++) {
        oneRow = theTableBody.rows[i]
        newCell = oneRow.insertCell(0)
        newCell.className = "rankCells"
        newCell.innerHTML = rank++
    }
    form.addColumn.disabled = true
    form.removeColumn.disabled = false
}
function deleteColumn(form) {
    var oneRow
    if (theTable.tHead) {
        oneRow = theTable.tHead.rows[0]
        oneRow.deleteCell(0)
    }
    for (var i = 0; i < theTableBody.rows.length; i++) {
        oneRow = theTableBody.rows[i]
        oneRow.deleteCell(0)
    }
    form.addColumn.disabled = false
    form.removeColumn.disabled = true
}
</SCRIPT>
</HEAD>
<BODY onLoad="init()">
<H1>Modifying Table Columns</H1>
<HR>
<FORM NAME="controls">
<FIELDSET>
<LEGEND>Add/Remove Left Column</LEGEND>
<TABLE WIDTH="100%" CELLSPACING=20><TR>
<TD><INPUT TYPE="button" NAME="addColumn" VALUE="Insert Left Column" 
    onClick="insertColumn(this.form)"></TD>
<TD><INPUT TYPE="button" NAME="removeColumn" VALUE="Remove Left Column" 
    DISABLED onClick="deleteColumn(this.form)"></TD>
</TR>
</TABLE>
</FIELDSET>
</TABLE>
</FIELDSET>
</FORM>
<HR>
<TABLE ID="myTABLE" CELLPADDING=5 BORDER=1>
<THEAD ID="myTHEAD">
<TR>
    <TD>River<TD>Outflow<TD>Miles<TD>Kilometers
</TR>
</THEAD>
<TBODY>
<TR>
    <TD>Nile<TD>Mediterranean<TD>4160<TD>6700
</TR>
<TR>
    <TD>Congo<TD>Atlantic Ocean<TD>2900<TD>4670
</TR>
<TR>

<TD>Niger<TD>Atlantic Ocean<TD>2600<TD>4180
</TR>
<TR>
    <TD>Zambezi<TD>Indian Ocean<TD>1700<TD>2740
</TR>
</TABLE>
</BODY>
</HTML>

Related examples in the same category

1.	Tabular data in Javascript with hyper link
2.	Change the width of a table border
3.	Change the cellPadding and cellSpacing of a table
4.	Specify frames of a table
5.	Change table row height
6.	Specify rules for a table
7.	Create table caption
8.	Deleting table rows
9.	Adding table rows
10.	Align the cell content in a table row
11.	Change the cell content in a table row
12.	Vertical align the cell content in a table row
13.	Align the cell content in a single cell
14.	Vertical align the cell content in a single cell
15.	Adding cells to a table row
16.	Change the colspan of a table row
17.	Insert table row: the uniqueID Property
18.	Using the cloneNode Method
19.	Cycling Through Table frame Property Values
20.	Replacing Table Cell Content
21.	Inserting/Removing Row Elements
22.	Accessing userProfile Data
23.	Cycling Through Table rows Property Values
24.	Using the Data Binding record Number Property
25.	Using the offsetParent Property
26.	Transforming JavaScript Data into HTML Tables
27.	Transforming JavaScript Data into HTML Tables with HyperLink
28.	Create a table
29.	Change table border width and cell padding

Modifying Table Columns : Table « HTML « JavaScript DHTML

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