SWF file Changes font on other computers after upload

Hi I’m very new to posting (1st one) I am also new to Flash CS4. Maybe someone may help me here, I made an ad with Flash and published to a .swf file. When I uploaded to my website (used Dreamweaver CS4) it looks fine on my computer but on other computers the nice font I used is different, (plain fonts). Is there a better way to publish so the font is embedded into the file and not effected by the fonts on others computer? Or is there something else I’m doing incorrectly? Please help. And thank before.