摘要：
元素拖动前提条件:元素为定位元素, 个人建议position:absolute;算法1var left,top,x,y;var element = document.getElementById('drag');element.onmousedown = function(e){ e = e || window.event; left = this.offsetLeft; top = this.offsetTop; x =e.clientX; y =e.clientY; this.addEventListener('mousemove',dragMove,fal 阅读全文
摘要：
Event兼容性代码,按照W3C标准兼容:var fixEvent = function(e){ e = e || window.event; if(!e.preventDefault){ e.preventDefault = function(){ event.returnValue = false; }; } if(!e.stopPropagation){ e.stopPropagation = function(){ event.cancelBubble = true; }; } if(e.pageX === undefined && e.pag... 阅读全文