Parsing Server Data

function showPictures() {

var tempText = document.createElement("div");

var theText;

if (xhr.readyState == 4) {

if (xhr.status == 200) {

var allImages = xhr.responseXML.getElementsByTagName("content");

for (var i=0; i<allImages.length; i++) {

tempText.innerHTML = getPixVal(allImages[i]);

theText = tempText.getElementsByTagName("p")[1].innerHTML;

theText = theText.replace(/240/g,"75");

theText = theText.replace(/180/g,"75");

theText = theText.replace(/_m/g,"_s");

document.getElementById("pictureBar").innerHTML += theText;

}

}

else {

alert("There was a problem with the request " + xhr.status);

}

}

function getPixVal(inVal) {

return (inVal.textContent) ? inVal.textContent : inVal.text;

}

}

<entry>

<title>IMG_0042.JPG</title>

<link rel="alternate" type="text/html"

href="http://www.flickr.com/photos/dorismith/882587910/in/set-72157600976524175/"/>

<id>tag:flickr.com,2005:/photo/882587910/in/set-72157600976524175</id>

<published>2007-07-24T05:19:08Z</published>

<updated>2007-07-24T05:19:08Z</updated>

<dc:date.Taken>2007-07-22T13:40:36-08:00</dc:date.Taken>

<content type="html">

&lt;p&gt;

&lt;a href=&quot;http://www.flickr.com/people/dorismith/&quot;&gt;

Dori Smith&lt;/a&gt; posted a photo:

&lt;/p&gt;

&lt;p&gt;

&lt;a href=&quot;http://www.flickr.com/photos/dorismith/882589162/&quot; title=&quot;

IMG_0043.JPG&quot;&gt;&lt;img src=&quot;

http://farm2.static.flickr.com/1179/882589162_25b4d6bcbe_m.jpg&quot;

width=&quot;180&quot; height=&quot;240&quot; alt=&quot;IMG_0043.JPG&quot; /&gt;&lt;/a&gt;

&lt;/p&gt;

</content>

<author>

<name>Dori Smith</name>

<uri>http://www.flickr.com/people/dorismith/</uri>

</author>

<link rel="enclosure" type="image/jpeg"

href="http://farm2.static.flickr.com/1179/882589162_25b4d6bcbe_m.jpg" />

<category term="winery" scheme="http://www.flickr.com/photos/tags/" />

<category term="sonomacounty" scheme="http://www.flickr.com/photos/tags/" />

<category term="sculptures" scheme="http://www.flickr.com/photos/tags/" />

<category term="dorismith" scheme="http://www.flickr.com/photos/tags/" />

<category term="paradiseridge" scheme="http://www.flickr.com/photos/tags/" />

<category term="paradiseridgesculptures" scheme="http://www.flickr.com/photos/tags/" />

</entry>

flickrfeed.xml - snipet

Regular Expression Replacements

Condition True Part False Part From Page 34

Abbreviated version of if statement from the last script

Looking for 240 Wide by 180 Tall pictures using the /g (or global match – not just the first occurrence), Converting them to 75 x 75 standard Flickr Thumbnail size and swapping the _m medium size for the _s or small image