I don't understand what is going on here. I am following the manual and don't understand why

I am getting errors.

I used this code:

Code:
if (key_p) & (freeze_mode == 0) 
		{
			freeze_mode = 1;
		}

...and got the error:

Error in 'MAIN' line 100: syntax error

< [][]{ >


Earlier I had tried:

Code:
//The PATH keyword gives directories where template files can be found.
	PATH "C:\Program Files\GStudio7\projects\test";
	PATH "C:\Program Files\GStudio7\projects\test\templates\code";
	PATH "C:\Program Files\GStudio7\projects\test\templates\images";
	PATH "C:\Program Files\GStudio7\projects\test\templates\sounds";
	PATH "C:\Program Files\GStudio7\projects\test\templates\models";

and got this error:

Error in 'MAIN' line 8: 'PATH' undeclared identifier

I also tried:

Code:
// Function for toggling pause mode
function pauseGame()
{
	freeze_mode = 1;
	freeze_mode %= 2; // two switches
}

on_p = pauseGame;


...and nothing happens.
Could someone please help me with what is wrong?