jQuery implements the code to display or hide the prompt text value in the form input as the mouse focus moves in and out_jquery

<script> <br>$(function(){ <br>//Control the text color in the input box<br>$("input:not(:last)").css("color","#999"); <br>} ); <br>//Mouse focus moves into the username box and the text disappears<br>$("input:first").click(function () { <br>var check1 = $(this).val(); <br>if (check1 == this.defaultValue) { <br>$(this).val(""); <br>} <br>}); <br>//The mouse focus of the user name box moves out, and the text Display<br>$("input:first").blur(function () { <br>$(this).val(this.defaultValue); <br>}); <br>//Mouse focus of password box Enter, the text disappears<br>$("input:eq(1)").click(function () { <br>var check2 = $(this).val(); <br>if (check2 == this. defaultValue) { <br>$(this).val(""); <br>} <br>//Mouse focus of the password box is moved out, and the text is displayed<br>$("input:eq(1)").blur (function () { <br>$(this).val(this.defaultValue); <br>}); <br>}) <br></script>