Javascript - 50 functions and tutorial

The content of this text is not intended as a programming manual for those who want to start learning to program starting from scratch, but it is a manual that a beginner or intermediate programmer of such language should keep on hand, in fact it contains 50 examples, which can be easily inserted into a web document and then find the solution at the appropriate time or control the shape and the syntax of a script etc.., because sometimes even the most experienced programmers can get out of how to proceed to set up a function or have difficulties in creating an event.
All the examples in this text being very simple and can be easily modified so adaptable to your web files.
One important thing especially for the less experienced and to pay attention to uppercase and lowercase letters when you browse these examples, as in when and also specified in the following javascript is case-sensitive language, and then the difference between lowercase and uppercase letters.