Web pages use the scripting language JavaScript that runs on the visitors' browser. Thus, they become more functional, and if this function is disabled, they may not be displayed or updated at all.

Instructions
Step 1
Launch Opera browser. To enable the normal refresh of JavaScript pages, you need to go to the "Menu" section and select the "Settings" item. Open the "Advanced" tab and select "Content". Check the box next to Enable JavaScript. If you click on the "Configure JavaScript" button, you can mark some additional parameters of this function.
Step 2
Click on the Tools icon in the Internet Explorer web browser. Go to the Internet Options section and open the Security tab, where click on the Custom level link. A dialog box will open in which you need to go to the Scripting section and select the Enable item. A warning popup will appear - click Yes to enable JavaScript. Click on the Refresh button to refresh the browser page with the new settings.
Step 3
Open the Options menu of the Mozilla Firefox browser. Go to the Content tab and check the Enable Javascript checkbox. Confirm the operation and save the settings. Refresh the page by clicking the Reload current page button.
Step 4
Launch Customize and control in Google Chrome browser and go to Options section. Select the Under the Hood menu, click the Privacy tab and then the Content settings link. In the window that opens, open the JavaScript section and activate the Allow all sites to run JavaScript (recommended) item. Save your settings and restart your browser.
Step 5
Go to the Edit menu of the Apple Safari browser and select the Preferences section. Open the Web content menu and go to the Security tab. Check the Enable JavaScript box. Click the "OK" button to activate the settings. To refresh the page with new settings, press the corresponding button or the F5 key.