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A common mistake made in JavaScript is the difference between names and IDs. In some browsers you are able to directly access an element by its ID such as:

document.id.(attribute)

However, that doesn’t work in all browsers and therefore should not be used. The correct way to access an element by its ID is with the function getElementById(), which is actually quite easy to remember if you think about it . This would be the way to use it:

document.getElementById(‘id’).(attribute)

Generally when the name attribute is used it’s for forms, and thus requires the name of the form to be called as well. The structure for this is:

document.formName.elementName.(attribute)

It’s a pretty simple concept, however it’s often misused, so make sure you know what you’re trying to do before you do it!