JS implementation of input box prompts text clicks disappear effect _javascript Skills

This article describes the JS implementation of the input box prompts text clicks disappear effect. Share to everyone for your reference, specific as follows:

In the Web landing box in the input box will often see prompts you to enter what content of the word color is relatively light, this is "text box clicks when the text disappears, lose focus when the text appears" This effect, this effect with a JS can be completed, this effect is to do the site of the necessary JS code; I will write JS write and write fast , you will need code collection to make a backup, and it will be much easier to use.

The following is the implementation of the effect of the JS code:

<script language= "JavaScript" type= "text/javascript" >
  function AddListener (ELEMENT,E,FN) {
    if ( Element.addeventlistener) {
       element.addeventlistener (e,fn,false);
     } else {
       element.attachevent ("on" + E , FN);
     }
  var myinput = document.getElementById ("Myinput");
  AddListener (Myinput, "click", Function () {
  myinput.value = "";
  })
  AddListener (Myinput, "blur", function () {
  myinput.value = "Please enter your ID";
  })
</script>

As long as the code saved into a JS file can be a good quote on the Web page OK, easy to complete this to not program people look very difficult effect.

HTML code:

 <! DOCTYPE HTML PUBLIC "-//w3c//dtd HTML 4.01//en" "HTTP://WWW.W3.ORG/TR/HTML4/STRICT.DTD" >  
 

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I hope this article will help you with JavaScript programming.