JS
window.onload = function(){
var _addOptions = document.getElementById("addOptions"),
_addOption = document.getElementById("addOption"),
addOptions = function(target, optons){//添加option
var _option = null,
ol = optons.length,
i = 0,
_v = "",
_t = "";
for(; i < ol ; i++ ){
_v = optons[i].value;
_t = optons[i].text;
_option = document.createElement("OPTION");//创建空option引用
_option.value = _v;//添加值
_option.text = _t;//添加文本
target.options.add(_option);//增加option
}
};
_addOptions.onclick = function(){
addOptions(_addOption, [
{
"value":"新添加的元素",
"text":"新添加的元素"
}
])
}
};