Array is not working ( AS2 )

I have 4 buttons and I am trying to rollover individually. I try to use the following method but it is not really working. Any advises is appreciate.

var totalObjects = 4;
for (i = 1; i < totalObjects; i++) {
	obj[i].onRollOver = function () {
		this.gotoAndStop ("safe_drag");
	};
	obj[i].onRollOut = function () {
		this.gotoAndStop ("original_state");
	};
}

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