相关疑难解决方法(0)

我知道" getElementsByClassName"不支持IE8.你知道我可以使用什么吗？我因错误而烦恼

"对象不支持此属性或方法".

HTML代码是:

function sumar() {
var elems = document.getElementsByClassName('verdana14 toAdd');
var myLength = elems.length;
total = 0;
for (var i = 0; i < myLength; ++i) {
   if (elems[i].value!="") {
       total += parseInt(elems[i].value,10);
       }
    }

var promedio = total/myLength;
parseFloat(document.getElementById('promediocal').value = promedio.toFixed(2));
}

这是调用javascript函数的输入文本:

<input name='AE_EA_1_BIV_003_2' type='text' class='verdana14 toAdd' id='AE_EA_1_BIV_003_2' style='width:50px' onChange='sumar()'/>
<input name='AE_EA_1_BIV_003_3' type='text' class='verdana14 toAdd' id='AE_EA_1_BIV_003_3' style='width:50px' onChange='sumar()'/>
<input name='AE_EA_1_BIV_003_4' type='text' class='verdana14 toAdd' id='AE_EA_1_BIV_003_4' style='width:50px' onChange='sumar()'/>