Movie clip trigger using actionscript

[font=Times New Roman][size=3]On the main timeline I have two empty containers (container_1 and container_2. I load an external movie/video-clip using the LoadMovie command into container_1. This works fine.[/size][/font]

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[font=Times New Roman][size=3]I would like to know if it is possible – using actionscript – to have this newly loaded movie (video) trigger events in container_2 when it reaches a certain frame? [/size][/font]

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[font=Times New Roman][size=3]For example, when the video in container_1 plays frame 10, I would like it to load a movie clip (some animated text) into container_2. And when the video in container_1 reaches frame 20, I would like it to load a new/different movie clip (of some animated text) into container_2.[/size][/font]

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[font=Times New Roman][size=3]Is this possible??? My guess is that I will need: [/size][/font]
[font=Times New Roman]size=3 some code to keep track of the video frames in container_1 and [/size][/font]
[font=Times New Roman]size=3 some additional code to trigger the events in container_2 (maybe some kind of an if/then statement).[/size][/font]
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[font=Times New Roman][size=3]BTW: the external movie that I’m loading into container_1is a short video. I take my edited .avi file and convert it into a .swf file with Sorenson. I have found some problems when I import an avi file directly into a flash movie; but I’m certainly willing to do this, if it is the way to get things working.[/size][/font]
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[font=Times New Roman][size=3]Thanks in advance for your help.[/size][/font]

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[font=Times New Roman][size=3]John[/size][/font]