@verify: good idea. My developer also did something similar.
@Innovnate: you can put it at the end of the template file (of that page).
For example, if that page is contact, you can look for template page-contact.php or something similar and place the code there.
This is my dev's code:
<script>
jQuery(function($){
$.fn.wpcf7NotValidTip = function(message) {
return this.each(function() {
var into = $(this);
into.append('<span class="wpcf7-not-valid-tip">' + message + '</span>');
$('span.wpcf7-not-valid-tip').mouseover(function() {
//$(this).fadeOut('fast');
});
into.find(':input').mouseover(function() {
//into.find('.wpcf7-not-valid-tip').not(':hidden').fadeOut('fast');
});
into.find(':input').focus(function() {
//into.find('.wpcf7-not-valid-tip').not(':hidden').fadeOut('fast');
});
});
};
});
</script>