Now you don't want to place that script in every content... make your own moslate(mambot)...
1) Go to Moslate Categories and create a Category (or skip this and use an existing)
2) Go to Manage Moslate and click on New
3) For the name you may choose: helloworld
4) In your template code write:
5) click on the Parameters-tab (the most to the right)
6) for mode choose: Eval PHP
7) edit your content item again and write:
And again it should show the same