variable enclosed by plus signs?

what's it mean?

[mightymid]

Hi all. I'm working with an html file that someone else authored. It contains tags to embed a Flash movie, along with some Javascript.

In the script, a variable is declared and then later called in the following string:

+'<param name=movie value="run.swf?exon='+exon+'">'

What's with the plus signs surrounding the variable name?

Thanks!
Mid <--noobie

[photon]

In JavaScript the plus signs are used for concatenation. So in your example,

+exon+

means "insert the value of the variable exon here". In other words, if the variable exon is "sessionID42" then the expression becomes

value="run.swf?exon=sessionID42"

.