Easy jQuery is a Magento extension that avoids jQuery conflicts between different extensions and the template, by replacing all the different jQuery versions loaded with only one instance.
To choose which jQuery version to load on your site:
- In the Magento Admin panel, go to "System" > "Configuration";
- Select "Easy jQuery" under the "Quirky Fox Labs" tab on the left;
- Select the jQuery version you want to load using the dropdown;
- Click on the "Save config" button in the top right.