The default search string for clearing focus

$ ("# S ")
. Val ("search ...")
. CSS ("color", "# CCC ")
. Focus (Function(){
$ (This).Css ("color", "black ");
If($ (This). Val () = "search ..."){
$ (This). Val ("");
}
})
. Blur (Function(){
$ (This).Css ("color", "# CCC ");
If($ (This). Val () = ""){
$ (This). Val ("search ...");
}
});

1. Set the field value "search ..."
2. When you get the focus field, set the color to black.
3. If the value is a default character, delete it. When the focus is lost, set the color to light gray.
4. If the value is null, return to the default value.