Hi,

I just wanted to make a quick announcement: I’ve released about 40 minutes of new video tutorials on beginners Javascript. Check out my new micro-site:

www.killerjavascript.com

This is a ’sneak peak’ of a new video tutorial course that targets total beginners to Javascript and programming in general. If you want to learn Javascript, I think these videos will be helpful.

Let me know what you think.

Stefan Mischook

www.killersites.com

Hi,

I just released a podcast where discuss the differences between Ajax and Flash.

You can read more about it in the killersites.com Magazine.

Hi,

I just wanted to announce that I am now giving away a series of video lectures on Ajax - about 3 hrs worth.

The Videos:

Ajax Videos

These videos are not designed to be a tutorial, but rather, they are a lecture. None the less, these videos can help give you at least a basic understanding of what Ajax is all about.

Anyway, they are free, so what do you have to loose!

If you guys want a proper killersites style (simple, practical and to the point) video tutorial, please let me know.

Thanks,

Stefan Mischook

www.killersites.com
www.killerphp.com

A while back a wrote a JavaScript script that automatically styled an HTML table. In a nutshell, the script automatically changes the background color of every 2nd row in an HTML table.

Anyway, someone recently sent me an updated version of the script. You will probably want to read the original article before looking at these changes.

From the email:

I did some simplification on the code for zebrastripes. I don’t bother with the last array bit because TR elements have the bgColor attribute.

trs[i].bgColor = ( i & 1 ) ? stripe_colour_even : stripe_colour_odd;

Greetings,

tarjei

The complete function:

function stripe_table(id_name) {

var my_table = document.getElementById(id_name);

/* For debugging */
if ( !my_table ) {
alert(”The ID ” + id_name + ” is not found.”);
return;
}

/* Table may have more than one tbody element */
var tbodies = my_table.getElementsByTagName(”tbody”);

for (var cnt = 0; cnt < tbodies.length; cnt++) {
var trs = tbodies[ cnt ].getElementsByTagName("tr");

/* Walk table row for row */
for (var i = 0; i < trs.length; i++) {
if (! hasClass(trs[i]) && ! trs[i].style.backgroundColor) {
trs[i].bgColor = ( i & 1 ) ? stripe_colour_even : stripe_colour_odd;
}
}
}
}
}

CIAO.

Stefan Mischook

Hi,

I decided to create another blog post to make it easier to find the updated version of the important matching columns script - it was buried in the originals article’s comments.

Notes:

• The original matching columns video tutorial
• The original discussion on the web design forum

-

Updated script by: Jonathan del Mar

I have modified the script to work with multiple class groups also with elements with multiple class names

/*
Derived from a script by Alejandro Gervasio.
Modified to work in FireFox by Stefan Mischook for Killersites.com

Modified to work with multiple class groups also with elements with multiple class names
by Jonathan del Mar (dec-14-2006)

How it works: just apply the CSS class of ‘column’ to your pages’ main columns.

to work with different classes
add

var columns = new Array(’class_name1′, ‘class_name1′…);

by Jonathan del Mar

by default the script will call
matchColumns();
and the default class_name is ‘column’
(see the bottom of this script)
by Jonathan del Mar

*/
matchColumns=function(my_class){

var divs,contDivs,maxHeight,divHeight,d;

// get all elements in the document

divs=document.getElementsByTagName(’div’);

contDivs=[];

// initialize maximum height value
maxHeight=0;
if (!my_class) {
my_class = ‘column’;
}

my_regex = new RegExp(’(.* |^)’ + my_class + ‘( .*|$)’);

// iterate over all elements in the document

for(var i=0;i elements with class attribute ‘container’

//if(/\bcolumn\b/.test(divs[i].className)){
// modified by Jonathan del Mar to match ‘column’ in multiple classes

if(my_regex.test(divs[i].className)){
d=divs[i];

contDivs[contDivs.length]=d;

// determine height for element

if(d.offsetHeight){

divHeight=d.offsetHeight;

}

else if(d.style.pixelHeight){

divHeight=d.style.pixelHeight;

}

// calculate maximum height

maxHeight=Math.max(maxHeight,divHeight);

}

}

// assign maximum height value to all of container elements

for(var i=0;i
var columns = new Array(’class_name1′, ‘class_name2′, …);

to your html header.