简单的JavaScript显示和隐藏元素

简单的JavaScript显示和隐藏元素

// show or hide a selected element
// if no state is given, the visibility is toggled
// otherwise visibility is set to hidden or visible as selected
function showHide(e, state) {
    el = document.getElementById(e);
    if (state == "hidden") {
    	el.style.visibility = "hidden";
    } else if (state == "visible") {
    	el.style.visibility = "visible";
    } else {
    	el.style.visibility = el.style.visibility  == "visible" ? "hidden" : "visible";
    } 
}