how do u switch campaigns

Hi need help i have people that i want too go to other can pains. i see other people have derv on prohies and factions. so i need too know how to do that please anser

First thing is, you need to have bought that campaign and linked it to your current account. Once you do that, you get your character to the major port town of your campaign (Lion's Arch for Prophecies, Kaineng Center for Factions, and Kamadan for Nightfall). There will be a window that pops up telling you about a quest for you to do. That quest will take you to a different campaign.

there is two quest

a canath and onther one

You'll get one quest per campaign that you buy.

[wiki]Sunspears in Kryta[/wiki] From Prophecies to Nightfall
[wiki]Sunspears in Cantha[/wiki] From Factions to Nightfall
[wiki]Mhenlo's Request[/wiki] From Prophecies to Factions
[wiki]Terror in Tyria[/wiki] From Nightfall to Prophecies
[wiki]Chaos in Kryta[/wiki] From Factions to Prophecies
[wiki]Plague in Cantha[/wiki] From Nightfall to Factions
[wiki]What Lies Beneath[/wiki] From Prophecies to Eye of the North
[wiki]I Feel the Earth Under Cantha's Feet[/wiki] From Factions to Eye of the North
[wiki]Hole in Istan[/wiki] From Nightfall to Eye of the North

Hope this helps

Once you complete the required quest to travel to a new chapter you can do so simply by mapping via the Ship on the world map.