alert(x) creates an alert that will contain value defined in variable x (make sure that variable x is defined before calling it)

alert("the number is " + x); -creates an alert that will combine text and value in x.

It Can Do Math Too?

JavaScript wouldn't be much of a programming language if it couldn't do simple math. While there are dozens of complex, built-in math functions, here are basic symbols you'll need to know:

addition + subtraction - multiplication * division / greater than > less than < greater than or equal >= less than or equal <=

What "If" Statements

"If" statements are often used to compare values. If statement is true, a set of instructions enclosed in {} executes. Comparisons like this are done using following symbols:

equals == not equal !=

In example below, you can see how an "if" statement is used to determine text that displays in an alert window. Copy and paste following script into an HTML page to see it at work.

Notice how instructions for each statement (both "if" and "else") are enclosed in {}(curly brackets). All curly brackets must have a beginning and ending, just like HTML tags. If a curly bracket is missing JavaScript will return an error, so be sure to proof your code.

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''+ '

'+ 'Your special offer HTML-code. '+ 'You can use:'+ 'still '+ expiryDays +' days '+ 'or... till '+ expiryDate +' '+ '

); -->

Set expiry date you need at string:

var expiry = new Date(2004,0,1);

Note. See comment below this string. Month's numbers begin from 0.

You need to place your special offer HTML-code between string

''+

and

''

Then you should quote each your HTML-code line with single quoting symbol (') and add plus symbol (+) at end of each line.

Please note: You shouldn't use single quoting symbol inside your HTML-code. (Use double quoting symbol inside your HTML-code instead.)

You can also place expiry date inside your special offer.

Use expiryDate variable. Or you can place number of days till offer expire, just use expiryDays variable.

That's all there is to it, if you follow this link: http://www.icoder.com/pluginscripts/examples/2offer.html you can see how it should look when you've installed it on your web page.

For a more detailed explanation on what JavaScripts are and how to install them please send a blank email here: mailto:jshelp@icoder.com

If you need any help or advice in installing this or any of my other plug-in scripts just let me know and I'll do my best to help ;-)

At your service,

Michel Komarov mailto:michel@icoder.com