小编use*_*965的帖子

<div class="Trade">
    <div id="Offer">
        <div class="NoResults">No Result!</div>
        <div class="FooterPager"> <span id="Offer"><a disabled="disabled">First</a>&nbsp;<a disabled="disabled">Previous</a>&nbsp;<a disabled="disabled">Next</a>&nbsp;<a disabled="disabled">Last</a>&nbsp;</span>
        </div>
    </div>
</div>

这是我的javascript:

function Check(){
return !(iframe.contentDocument.getElementById("Offer").firstElementChild.tagName.toLowerCase() == "table");
}

是否可以返回true或false值来检查"NoResult"类是否存在？如果是这样,我该怎么办？你们晃动吧.我不能改变HTML编码,只能改变javascript.

这是HTML代码:

<div id="CurrencyQuotePane">
    <div class="CurrencyQuote">
        <div class="column">
            <div class="form-label">Pair: </div><div>1/2</div>
            <div class="form-label padding-top">Spread: </div><div>385</div>
        </div>
        <div class="column">
            <div class="form-label">Rate: </div><div>1/2</div>
            <div class="form-label padding-top">High/Low: </div><div>2002.0/0.0055</div>
        </div>
    </div>
    <div class="clear"></div>
</div>

如果它不断变化,如何在Javascript中获得385？

这是我目前的javascript:

function getSpread(){
    var tag = iframe.contentDocument.getElementByClassName('SPREAD');
    var spread = Number(tag[1].innerHTML);
    return spread;
}

对不起,如果我对javascript一无所知,我是一个完整的新手.