Checksum() Function

Calculates a checksum. type can be either MD5 or SHA1, string is the

Checksum(type,buffer,init_value)

type - Checksum type can be either SHA1 or MD5
buffer - buffer to calculate checksum for. The buffer can include variables.
init_value - Initialization value. This paramater is ignored if type is MD5.

If buffer contains the %SOURCE% variable, a checkum will be performed on the HTML source code of the currently loaded page.

The following example uses the SHA1 algorithm required to query google for a page rank.