我正在尝试将事件侦听器添加到“子类”(这就是所谓的名字吗?)。但是它没有生效。
JS:
var Station_Button = function(status_id)
{
var alert_txt, class_txt;
switch( status_id )
{
case 1:
{
alert_txt = "<strong>Complete!</strong> This Station is complete.";
class_txt = "alert alert-success";
}
case 2:
{
alert_txt = "<strong>Error!</strong> This Station has failed!";
class_txt = "alert alert-info";
}
}
document.getElementById("notify").innerHTML = alert_txt;
document.getElementById("notify").className = class_txt;
return false;
}
var ta_butt = document.getElementsByClassName("ta_butt.error");
for(var i=0;i<ta_butt.length;i++)
{
ta_butt[i].addEventListener('click', function() {Station_Button(2)}, false);
}
如果我删除了.error,它会很好地工作,但这当然会将事件应用于我的所有“ ta_butt”按钮-我只希望将其标记为错误。
如果有人对CSS感兴趣:
.ta_butt {
color: white;
border-radius: 7px;
font-size:150%;
text-align:center;
float: left;
margin: 1px;
width: 100%;
padding: 1px;
cursor: pointer;
cursor: hand;
background: -webkit-linear-gradient(top, #0066FF, #4D94FF); /* For Safari 5.1 to 6.0 */
background: -o-linear-gradient(bottom, #0066FF, #4D94FF); /* For Opera 11.1 to 12.0 */
background: -moz-linear-gradient(bottom, #0066FF, #4D94FF); /* For Firefox 3.6 to 15 */
background: linear-gradient(to bottom, #0066FF, #4D94FF); /* Standard syntax (must be last) */
}
.ta_butt.error {
background: -webkit-linear-gradient(top, #CC0000, #DB4D4D); /* For Safari 5.1 to 6.0 */
background: -o-linear-gradient(bottom, #CC0000, #DB4D4D); /* For Opera 11.1 to 12.0 */
background: -moz-linear-gradient(bottom, #CC0000, #DB4D4D); /* For Firefox 3.6 to 15 */
background: linear-gradient(to bottom, #CC0000, #DB4D4D); /* Standard syntax (must be last) */
}
.ta_butt.error:hover {
background: -webkit-linear-gradient(top, #DB4D4D, #CC0000); /* For Safari 5.1 to 6.0 */
background: -o-linear-gradient(bottom, #DB4D4D, #CC0000); /* For Opera 11.1 to 12.0 */
background: -moz-linear-gradient(bottom, #DB4D4D, #CC0000); /* For Firefox 3.6 to 15 */
background: linear-gradient(to bottom, #DB4D4D, #CC0000); /* Standard syntax (must be last) */
}
最佳答案
对于多个类,请在类名称之间使用空格:
var ta_butt = document.getElementsByClassName("ta_butt error");