What's wrong?!

It’s getting me mad! I just can’t see what the syntax error is! Please help me!

Error Scene=Scene 1, layer=Layer 1, frame=1:Line 16:
Syntax error.
dx = nodeB._x – nodeA._x;

Error Scene=Scene 1, layer=Layer 1, frame=1:Line 17:
Syntax error.
dy = nodeB._y – nodeA._y;

Total ActionScript Errors: 2 Reported Errors: 2