Syntax Help

I'm trying to make a greeter script that is operated by a menu and has 3 different modes. It can either give you a notecard, dialog box, or chat message upon visiting... Here is apart of my code

listen(integer channel, string name, key id, string msg)
{
if(msg == button1)
{
if(notecard == 0)
{
if(dialog == 0)
{
if(say == 0)
{
llOwnerSay("Please select a mode first, then press On.";
}

else
{
llOwnerSay("on";
llSensorRepeat("", "", AGENT, 20, TWO_PI, .1);
}
}
}


}

As you can probably see, I am by far nothing special of a scripter, but i represented each mode by 0 = off, and 1 = on. Above, i have it so if every mode is "off" then you will be prompt to set a mode before you are able to turn the sensor on. However, I think my brackets are completely in the wrong places. When i move the brackets around, I can get 1 of the 3 modes working, depending where I put the brackets.. Could someone please direct me in the proper way to handle this.. I never worked with so many if statements within each other before . Thank you.

You need to close off all your if statments BEFORE executing the else

listen(integer channel, string name, key id, string msg)
    {
        if(msg == button1)
        {
            if(notecard == 0)
            {
                if(dialog == 0)
                {
                    if(say == 0)
                    {
                        llOwnerSay("Please select a mode first, then press On.");
                    }
                }
            }
         }  
         else
         {
            llOwnerSay("on");
            llSensorRepeat("", "", AGENT, 20, TWO_PI, .1);

         }
    }

Thank you

It's easier to see a problem like that if you're always careful to indent nested blocks of code. When you post scripts here, too, always surround it with

 ....  

or

 .... 

tags so that the indents are preserved. (If you can't see them, then hit the "Quote" button on a post.)