Turn your first snippet into a module that you can then require for your jquery code.
dojo.js (this isn't really what you named your js file is it?)
define("zoomToStream",["dojo modules",...], function(dojo,...) {
...
function zoomToStream(targetStream) {
...
}
return zoomToStream;
});
jQuery.js (this isn't really what you named your js file is it?)
require(["zoomToStream"],function(zoomToStream) {
$(document).ready(function() {
$("#streamSelection li").click(function(e) {
switch (e.target.text) {
case "All Streams":
zoomToStream("all");
break;
case "First Stream";
zoomToStream("1");
break;
...
}
}
});
});
modify to fit your file structure etc, kinda seems odd to use those filenames for your js files.