[galaxy-dev] html output with javascript

Hello galaxy users, one of my tools returns an html output in which I have links to images and javascripts. Images and Javascripts of the dataset_XXX.dat file are located in a dataset_XXX_files directory. Images are well displayed in galaxy output but javascripts aren't executed. Even an alert('foo') cannot be retrieved. Has somebody already experiment this ? In other related posts, it's said to look at rgenetics fastqc wrapper but no javascript fonctions are called in the fastqc_report.html. Thanks, Laure