Got it working with this: function Hovertest() { this.timeoutRunning = false; this.hover = function() { if (!this.timeoutRunning) { this.timeoutRunning = true; alert('true...'); } else { alert('JEAAA FALSE'); } } } var hovertje = new Hovertest();
<a href="#" onmouseover="Hovertest.hover();">hovertest</a> If there is another way.. please tell me.