Anyone a plumber???

[hemispheredancer]

We have been having some issues with our toilet and kitchen sink. Every time the toilet flushes the kitchen sink will gurgle. We have a double sink and it is the drain side that gurgles more than the disposal side. What is causing it? I filled both sides up with cold water and had DS go flush. As soon as he flushed I opened up both drains and turned on the disposal. I just went in to give it a flush and no gurgles. Is it something to do with the drain or the stack? Thanks!