},
hide: function() {
if (this.timer) { clearTimeout(this.timer); this.timer = 0; }
this.timer = setTimeout("Tooltip.toggleVis('" + this.tipID + "', 'hidden')", this.hideDelay);
if (this.followMouse) // release mousemove
dw_event.remove( document, "mousemove", this.trackMouse, true );
this.tip = null;
},
toggleVis: function(id, vis) { // to check for el, prevent (rare) errors
var el = document.getElementById(id);
if (el) el.style.visibility = vis;
},
trackMouse: function(e) {
e = dw_event.DOMit(e);
Tooltip.positionTip(e);
}
}
Tooltip.init();
（出处：清风网络学院）
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