SSTP strings can be quoted in three different ways, each with their own advantages:
First of all, they can be quoted with double quotes ("). This quoting style is useful, although when quoting HTML it may be confusing. With double quotes, a double quote is escaped by placing a backslash (\) before it. A start comment tag (<!--) is escaped by placing a backslash between its two hyphens (<!-\-). An end comment (-->) is escaped in the same fashion (-\-%gt;). A backslash is escaped by placing a backslash before it (\\).
Strings can also be quoted with single quotes ('). This has the advantage that you can leave HTML tags intact; you don't have to escape all the double quotes. Escaping is similar to double quotes, but rather than placing a backslash before a double quote, a backslash must be placed before a single quote.
Finally, strings can be left without any quotes. This will act unpredicatbly for strings with spaces, and provides no escape characters.