Where can I learn how to code a website smilar to this?

[Arn]

http://sloganmaker.com/

I just know some basic HTML and CSS coding. This thing is controlled by Java-script am I right?

So exactly like in the link:
I want to code a web page that can randomly pick one of several sentences that I've made,
and put newly typed words in a predefined spot that exists in each sentence.

[Bolkonsky]

Or PHP. Basic premise is to make a bunch of strings, add them into an array, take the input, assign it to a variable, take a random array number, then display the input in front of the array's string.

http://www.w3schools.com/php/default.asp

You can have it up and running in an hour.

[ROFL Copter]

You could technically write something like that in any language fairly easily.

[Arn]

Great, thanks. I'm gonna check the PHP tutorials at w3schools. I'm pretty sure that it'll take me more than an hour though. I'm very new to scripting.