javascript - Android: get link from HTML-code (no tag/id) -


i want download ical file app. works fine, link file change every 6 months. the page/link inherits link file not change, want code of main page , find link ical file download it.

i think may work best javascript, have no clue that. there no tag or id search for.

this page search link:

https://stundenplan.hs-furtwangen.de/splan/std?act=tt&lan=de&pu=-1&sel=pg&og=1433&pg=cnb4

the search pattern "/splan/ical" there found link file.

in end need "/splan/ical?type=pg&puid=6&pgid=1617&lan=de" stored somewhere.

right use downloadmanager file, no html-code stored anywhere.

hope can help. thanks.

edit:

here part of html source contains link (first href):

<tr>  	<td />  	<td colspan="1"><a  		href="/splan/ical?type=pg&amp;puid=8&amp;pgid=2505&amp;lan=de"><img  			style="align: middle; border: 0;" src="/splan/pictures/ical.png"  			alt="ics feed" height="20" /></a>       <a href="http://www.progotec.de/site/splandok/ical-anbindung"  	target="_blank"><img style="align: middle; border: 0;"  	alt="hilfe zu ical"  	src="/splan/pictures/hilfe.png"  	title="hilfe zu ical" height="20" /></a>  </td>  </tr>

i not sure looking for, javscript-script can find link.

//like link on page  //search done regularexpression  alert(document.body.innerhtml.match(/(\/splan\/ical[^"]*)/gi));
<body>  <!-- have body of page -->    ...    <a  		href="/splan/ical?type=pg&amp;puid=8&amp;pgid=2505&amp;lan=de"><img  			style="align: middle; border: 0;" src="/splan/pictures/ical.png"  			alt="ics feed" height="20" /></a>     ...  </body>

here regex demo on whole stundenplan.hs-furtwangen.de: http://regex101.com/r/wf3wu4/1


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