proper form needed

[kavan]

plz..can any1 tell me how to check a password is correct or not?
<i dunno much abt it but i dont want the if command since i dont want to sit and type if command for each and every user just to make my webspace more limited!!>
is there any way to connect it with a database??
also is there any other way that it checks the password within the site?
i hope you understand wat im trying to say..
i dunno much abt this..
plz tell me with comments and the js code:(

[Exuro]

Anything involving passwords and databases should not be done using JavaScript. It should be handled with a server-side language such as PHP, CGI/Perl, ASP, or ASP.NET.