代码触发js事件(click、change)示例应用_javascript技巧

触发click 事件
代码如下:
function simulateClick(el) {
var evt;
if (document.createEvent) { // DOM Level 2 standard
evt = document.createEvent("MouseEvents");
evt.initMouseEvent("click", true, true, window,
0, 0, 0, 0, 0, false, false, false, false, 0, null);
el.dispatchEvent(evt);
} else if (el.fireEvent) { // IE
el.fireEvent('onclick');
}
}

触发drag事件
代码如下:
function simulateDrag(el) {
var evt;
if (document.createEvent) { // DOM Level 2 standard
evt = document.createEvent("MouseEvent");
evt.initMouseEvent("dragstart", true, true, window,
0, 0, 0, 0, 0, false, false, false, false, 0, null);
el.dispatchEvent(evt);
} else if (el.fireEvent) { // IE
el.fireEvent('ondragstart');
}
}