Web遮罩層的實現方式

//1層遮罩整個IFrame function hideIframe1() { hideIframe(0); } //2層遮罩整個IFrame function hideIframe2() { hideIframe(1); } //3層遮罩整個IFrame function hideIframe3() { hideIframe(2); } //遮罩整個IFrame function hideIframe(level) { var div = document.createElement("div"); var