js去除select重复内容
js去除select重复内容
function del(obj){
var items = document.getElementById(obj);
var sobj = (function(){
var _sobj = {};
for(var i=0; i<items.options.length; i++){
_sobj[items.options[i].text] = 1;
}
return _sobj;
})();
items.options.length = 0;
var _cx = 0;
for(var i in sobj){
items.options[_cx] = new Option(i,i);
_cx += 1;
}
}
补充：网页制作,js教程 
