JavaScript scripting code

Dom manipulation of javascript: DOM: Document Object Model documents have a lot of elements, Each element is referred to as an object in the document. The model can explain the problem, the object constructs the model to, the HTML many documents, has one root, divides several branches, divides the leaf, each element only has one level document--label document, object--Each element object model in the document--abstract thing, tree structure Picture: window--window Port history--forward back, History location--URL document--page--/html client as long as you can see the window. Select: Red function, green object, yellow event.

JavaScript scripting code