jQuery简单实现title提示效果示例

/*
调用示例：
$(document).ready(function(){
$('.quicktip').quberTip({
 speed:200
});
});
<a href='' class='quicktip' title='Information about this link'>desktop publishing</a>
*/
jQuery.fn.quberTip = function (options) {
  var defaults = {
    speed: 500,
    xOffset: 10,
    yOffset: 10
  };
  var options = $.extend(defaults, options);
  return this.each(function () {
    var $this = jQuery(this);
    if ($this.attr('title') != undefined) {
      //Pass the title to a variable and then remove it from DOM
      if ($this.attr('title') != '') {
        var tipTitle = ($this.attr('title'));
      } else {
        var tipTitle = 'QuberTip';
      }
      //Remove title attribute
      $this.removeAttr('title');
      $(this).hover(function (e) {
        //      $(this).css('cursor', 'pointer');
        $("body").append("<div id='tooltip'>" + tipTitle + "</div>");
        $("#tooltip").css({ "position": "absolute",
          "z-index": "9999",
          "background": "#D3DDF5",
          "background-image": "url(../../Quber_Image/Quber_Common/Quber_TB_TitltBG.png)",
          "padding": "5px",
          "opacity": "0.9",
          "border": "1px solid #A3C0E8",
          "-moz-border-radius": "3px",
          "border-radius": "3px",
          "-webkit-border-radius": "3px",
          "font-weight": "normal",
          "font-size": "12px",
          "display": "none"
        });
        $("#tooltip")
.css("top", (e.pageY + defaults.xOffset) + "px")
      .css("left", (e.pageX + defaults.yOffset) + "px")
      .fadeIn(options.speed);
      }, function () {
        //Remove the tooltip from the DOM
        $("#tooltip").remove();
      });
      $(this).mousemove(function (e) {
        $("#tooltip")
  .css("top", (e.pageY + defaults.xOffset) + "px")
  .css("left", (e.pageX + defaults.yOffset) + "px");
      });
    }
  });
};