In orkut, as soon as one receives a new scrap, one gets an alert at side bottom even if page is not refreshed. I am sure that orkut doesn't check for scraps again and again by Ajax. Then how does orkut know that i have received a new scrap?? Similar thing is in shout boxes, whenever a new message is received they update automatically. Anyone know how it happens?
shubhamjain1 7 Junior Poster in Training
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