Adding a ID to a <li> based on part of an <a> tag

I have the following code:

<li class="zoneName"><a href="/Default.aspx?PageID=4869007">CYKF</a></li>
<li class="zoneName"><a href="/Default.aspx?PageID=4868459">YKA</a></li>

I need to add and ID to each of the < li > tags in this list. I need that ID to be the number at the end of the href string. Below is what I'd like it to be

<li class="zoneName" id="4869007"><a href="/Default.aspx?PageID=4869007">CYKF</a></li>
<li class="开发者_如何学GozoneName" id="4868459"><a href="/Default.aspx?PageID=4868459">YKA</a></li>

Any help is appreciated.

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Is the PageID in the anchor tag written in a server-side loop? Couldn't you modify it to write it to the <li> tag as well?

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If it must be jQuery, here you go

$("li a").each( function() {
  var match = /PageId=(\d+)$/.exec(this.href);
  if (match) $(this).parent("li")[0].id = match[1];
});

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you can do it like that:

demo: http://jsfiddle.net/qnEAu/

$('ul > li > a').each(function(){
    var element = $(this)
    var tempid = element.attr('href').split('=')
    element.parent('li').attr('id', tempid[tempid.length - 1])
})

note that it is not w3c valid to use numbers only as ID's

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$("li>a").each(function(i,el){

    var id = $(this).attr("href").split("=")[1];
    $(this).parent().attr("id", id);

})

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If the href is always going to only have integers in the PageID portion of the query, and the PageID would be the only part of the query with integers:

$('li').each( function() {
    var href_val = $(this).children('a').attr('href');
    var regex = '\b[0-9]+\b';
    var new_id = new RegExp(regex, href_val);

    $(this).attr('id', new_id);
});

That's just to start you out with. Go with a more advanced regex to futureproof.