Well i just tried the piece of code erik posted but i got some errors
i tried the script as follows
var ew = document.evaluate("//p[contains(.,'earthworms')]/
strong",document,null,9,null).singleNodeValue;
if(!ew) return; // no earthworms node found
ew = ew.innerHTML*1;
alert("Number of earthworms is "+ew);
but i got this error: SyntaxError: return not in function
in eval() line 0
and then i tried withouth the return line and got this:
TypeError: ew is null
maybe it'll help if i post more of the source page.
<table id="megaTable2" cellpadding="0" cellspacing="0">
<tr>
<td rowspan="2" id="leftSpacing">
</td>
<td id="contentBox" height="500" valign="top">
<center> <table border="0" cellspacing="0"
cellpadding="2"
width="100%">
<tr>
<td width=95% class="heading_box">
Fishing Fever
</td>
</tr>
</table><br>Here in the lake district, we offer you the chance to
compete in our famous fishing fever competition. All you need is an
earthworm to use as bait, and a good sense of where in the lake you'll
find the largest catch.<br><br>Your current fishing fever score is
<strong>31</strong><br><br>You currently have <strong>98</strong>
earthworms. Earn more at <a href='dirtdigger.php'>Dirt Digger</
a><br><br>Pick a location, cast your line, and see what you reel in!
<br><br><form method='post' action='/fishingfever.php?act=fish'><input
type='image' src='http://www.pokeplushies.com/images/games/
cf_lake.jpg' style='cursor:crosshair;'><input type='hidden'
name='code' value='74848'></form><br><br><a href='/fishingfever.php?
act=topfishers'>Click here to see who the top fishers are!</a>
</
center>
</td>
<td rowspan="2" width="160" valign="top">
<center>
On Oct 23, 8:30 pm, Erik Vold <[email protected]> wrote:
> A regex will work, but xpath expression is better in general, or you
> could write an xpath expression with some
> regexhttp://www.regular-expressions.info/xpath.html
> which is probably better if you are going to use regex at all.
>
> Using Gordon's xpath exp the js to get your earthworm count should be
> like:
> var ew=document.evaluate("//p[contains(.,'earthworms')]/
> strong",document,null,9,null).singleNodeValue;
> if(!ew) return;// no earthworms node found
> ew=ew.innerHTML*1;
> alert("Number of earthworms is "+ew);
>
> Where the last line that alerts the earthworm count is something more
> useful.
>
> Erik
>
> On Oct 23, 6:36 am, Gordon Pettey <[email protected]> wrote:
>
> > On Fri, Oct 23, 2009 at 4:33 AM, 杨大成 <[email protected]> wrote:
> > > i don't see any js can operate <strong> ,
> > > how about regex?
>
> > I repeat: XPath. No need for a regex.
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