我正在尝试根据在类别选择列表中选择的内容,获取子类别选择列表的值。这似乎在IE上无法正常工作。有人能建议一下问题所在吗?
在php文件中,我有以下代码:
<body onload="setSubcategories(default_value);">
在js文件中,我有类似以下内容的代码:
subcategories = new Array();
subcategories['Lifestyle'] = ['All',
'Beauty (SHC)',
'Skin Care',
'Hair Care',
'Oral Care',
'Cosmetics',
'Footwear',
'Jewelry',
'Male Styling',
'Women Hygiene',
'Womens magazines',
'Apparels',
' Fashion (AFA)',
'Spa',
'Accessories'
];
subcategories['Automobiles'] = ['All',
'Automobiles (C&B)',
'Cars',
'Bikes',
'Car Magazine',
'Bikes Magazine',
'Accessories'
];
subcategories['FoodandBeverage'] = ['All',
'Snacking',
'Confectionary',
'Beverages',
'Generic F&B',
'Restaurant Review',
'Food Reviews',
'Wines & Vineyards'
];
function setSubcategories(default_value){
default_value = (typeof default_value == 'undefined') ?
'All' : default_value;
var elem = document.getElementById('id-category');
if(elem == null){return false;}
var category = elem.value;
var subelem = document.getElementById('id-subcategory');
var html = "";
var subcategoriesArr = subcategories[category];
for(var i=0; i < subcategoriesArr.length; i++){
var selected = subcategoriesArr[i] == default_value ? " selected" : "";
html += '<option' + selected + '>' + subcategoriesArr[i] + '</option>\n';
}
subelem.innerHTML = html;
}
var
声明所有变量,但是你好像没有对subcategories
进行声明。此外,subcategories
应该是一个Object
而不是一个Array
,因为你没有使用任何数组的特殊功能。 - Tim Down