Javascript

• Rhino - A Javascript implementation in Java
• Javascript Drag and Drop
• DOM
• Arrays
• Strings

s.substring(start,end)
s.split(delimiter)

for (variable in object){
  // do something ( can use object[variable] for value )
}

For example, to show all properties of the current document

for (p in document) {
  alert(p+" = "+document[p]+"\n");
}

isNumber(val)

Events can be set to make a function run after a given number of milliseconds:

setTimeout("functionName()", 100);

To get an even to repeat, put this call inside the function itself and call it from body.onLoad

• onAbort - image
• onBlur - select, text, text area
• onChange - select, text, textarea
• onClick - button, checkbox, radio, link, reset, submit, area
• onError - image
• onFocus - select, text, testarea
• onLoad - windows, image
• onMouseOver - link, area
• onMouseOut - link, area
• onSelect - text, textarea
• onSubmit - form
• onUnload - window

Event handlers can also be defined by naming an event handler. For example

document.onclick = clickHandler
function clickHandler() {
  alert("Click handled");
}

Note: The event handler when assigned should not be followed by parentheses

http://gleepglop.com/javascripts/logger/

This probably only works in Internet Explorer

<A HREF="#"
onClick="this.style.behavior='url(#default#homepage)';
this.setHomePage('http://www.yourwebsite.com');">
Make this my homepage
</A>

http://www.javascripttoolbox.com/ - with a fantastic javascript calendar. Cheers Matt.

http://prototype.conio.net/