DOM对象在Internet Explorer中只需要两次单击

Question

我真的在努力学习以下代码。我仍然非常擅长使用带有javascript的DOM，这个脚本在FireFox，Chrome和Safari中运行得非常完美。在Internet Explorer中，它需要两次单击。如果您访问FireFox中的以下链接（http://bit.ly/yabAQg），然后访问Internet Explorer中的相同链接，您将看到如果您单击FireFox中的形状，如果您在Internet Explorer中执行此操作，它会立即显示颜色选项在您单击形状两次或在形状上然后单击另一个形状之前，不显示颜色选项。 IE，DOM，Javascript Ninja可以告诉我脚本有什么问题导致需要在IE中点击两次吗？

<?php 
$swatches = $this->get_option_swatches();
?>
<script type="text/javascript">
    document.observe('dom:loaded', function() {
        try {
            var swatches = <?php echo Mage::helper('core')->jsonEncode($swatches); ?>;

            function find_swatch(key, value) {
                for (var i in swatches) {
                    if (swatches[i].key == key && swatches[i].value == value)
                        return swatches[i];
                }
                return null;
            }

            function has_swatch_key(key) {
                for (var i in swatches) {
                    if (swatches[i].key == key)
                        return true;
                }
                return false;
            }

            function create_swatches(label, select) {
                // create swatches div, and append below the <select>
                var sw = new Element('div', {'class': 'swatches-container'});
                select.up().appendChild(sw);

                // store these element to use later for recreate swatches
                select.swatchLabel = label;
                select.swatchElement = sw;

                // hide select
                select.setStyle({position: 'absolute', top: '-9999px'});

                $A(select.options).each(function(opt, i) {
                    if (opt.getAttribute('value')) {
                        var elm;
                        var key = trim(opt.innerHTML);

                        // remove price
                        if (opt.getAttribute('price')) key = trim(key.replace(/\+([^+]+)$/, ''));

                        var item = find_swatch(label, key);
                        if (item)
                            elm = new Element('img', {
                                src: '<?php echo Mage::getBaseUrl(Mage_Core_Model_Store::URL_TYPE_MEDIA); ?>swatches/'+item.img, 
                                alt: opt.innerHTML, 
                                title: opt.innerHTML, 
                                'class': 'swatch-img'});
                        else {
                            console.debug(label, key, swatches);
                            elm = new Element('a', {'class': 'swatch-span'});
                            elm.update(opt.innerHTML);
                        }
                        elm.observe('click', function(event) {
                            select.selectedIndex = i;
                            fireEvent(select, 'change');
                            var cur = sw.down('.current');
                            if (cur) cur.removeClassName('current');
                            elm.addClassName('current');
                        });
                        sw.appendChild(elm);
                    }
                });

            }
            // Hide Second Option's Label
            function hideStuff(id) {
                if (document.getElementById(id)) {
                    document.getElementById(id).style.display = 'none';
                }
            }
            hideStuff("last-option-label");
            function showStuff(id) {
                if (document.getElementById(id)) {
                    document.getElementById(id).style.display = '';
                }
            }

            function recreate_swatches_recursive(select) {
                // remove the old swatches
                if (select.swatchElement) {
                    select.up().removeChild(select.swatchElement);
                    select.swatchElement = null;
                }

                // create again
                if (!select.disabled)
                    showStuff("last-option-label");
                    create_swatches(select.swatchLabel, select);

                // recursively recreate swatches for the next select
                if (select.nextSetting)
                    recreate_swatches_recursive(select.nextSetting);
            }

            function fireEvent(element,event){
                if (document.createEventObject){
                    // dispatch for IE
                    var evt = document.createEventObject();
                    return element.fireEvent('on'+event, evt);      
                }
                else{
                    // dispatch for firefox + others
                    var evt = document.createEvent("HTMLEvents");
                    evt.initEvent(event, true, true ); // event type,bubbling,cancelable
                    return !element.dispatchEvent(evt);
                }
            }

            function trim(str) {
                return str.replace(/^\s\s*/, '').replace(/\s\s*$/, '');
            }


            $$('#product-options-wrapper dt').each(function(dt) {

                // get custom option's label
                var label = '';
                $A(dt.down('label').childNodes).each(function(node) {
                    if (node.nodeType == 3) label += node.nodeValue;
                });
                label = trim(label);

                var dd = dt.next();
                var select = dd.down('select');
                if (select && has_swatch_key(label)) {
                    create_swatches(label, select);

                    // if configurable products, recreate swatches of the next select when the current select change
                    if (select.hasClassName('super-attribute-select')) {
                        select.observe('change', function() {
                            recreate_swatches_recursive(select.nextSetting);
                        });
                    }
                }
            });
        }
        catch(e) {
            alert("Color Swatches javascript error. Please report this error to support@galathemes.com. Error:" + e.message);
        }
    });
</script>

Answer 1

我在你的代码中找到了奇怪的部分

$$('#product-options-wrapper dt')

为什么你使用双$？

Answer 2

console.debug已被弃用。在＆＃34;函数create_swatches（label，select）＆＃34;它写在哪里＆＃34; console.debug（标签，键，色板）;＆＃34; 将其改为＆＃34; console.log（标签，键，色板） ;＆＃34; 或你可以一起删除那行代码 ....... thaterrorbegone