jQuery 通过事件委派一次绑定多种事件，以减少事件冗余_jquery

jQuery(function($) {
$('').hide().appendTo('body');
var tipTitle = '';
$('#mytable').bind('mouseover', function(event) {
var $link = $(event.target).closest('a');
if ($link.length) {
var link = $link[0];
tipTitle = link.title;
link.title = '';
$('#livetip').css({
top: event.pageY + 12,
left: event.pageX + 12
})
.html(' ')
.show();
};
}).bind('mouseout', function(event) {
var $link = $(event.target).closest('a');
if ($link.length) {
$link.attr('title', tipTitle);
$('#livetip').hide();
};
}).bind('mousemove', function(event) {
var $link = $(event.target).closest('a');
if ( $link.length) {
$('#livetip').css({
top: event.pageY + 12,
left: event.pageX + 12
});
};
});
});

jQuery(function($) {
var $liveTip = $('').hide().appendTo('body');
var tipTitle = '';
$('#mytable').bind('mouseover mouseout mousemove', function(event) {
var $link = $(event.target).closest('a');
if (!$link.length) { return; }
var link = $link[0];
if (event.type == 'mouseover' || event.type == 'mousemove') {
$liveTip.css({
top: event.pageY + 12,
left: event.pageX + 12
});
};
if (event.type == 'mouseover') {
tipTitle = link.title;
link.title = '';
$liveTip.html(' ')
.show();
};
if (event.type == 'mouseout') {
$liveTip.hide();
if (tipTitle) {
link.title = tipTitle;
};
};
});
});