to your HTML Add class="sortable" to any table you'd like to make sortable Click on the headers to sort Thanks to many, many people for contributions and suggestions. Licenced as X11: http://www.kryogenix.org/code/browser/licence.html This basically means: do what you want with it. */ var stIsIE = /*@cc_on!@*/false; sorttable = { init: function() { // quit if this function has already been called if (arguments.callee.done) return; // flag this function so we don't do the same thing twice arguments.callee.done = true; // kill the timer if (_timer) clearInterval(_timer); if (!document.createElement || !document.getElementsByTagName) return; sorttable.DATE_RE = /^(\d\d?)[\/\.-](\d\d?)[\/\.-]((\d\d)?\d\d)$/; forEach(document.getElementsByTagName('table'), function(table) { if (table.className.search(/\bsortable\b/) != -1) { sorttable.makeSortable(table); } }); }, makeSortable: function(table) { if (table.getElementsByTagName('thead').length == 0) { // table doesn't have a tHead. Since it should have, create one and // put the first table row in it. the = document.createElement('thead'); the.appendChild(table.rows[0]); table.insertBefore(the,table.firstChild); } // Safari doesn't support table.tHead, sigh if (table.tHead == null) table.tHead = table.getElementsByTagName('thead')[0]; if (table.tHead.rows.length != 1) return; // can't cope with two header rows // Sorttable v1 put rows with a class of "sortbottom" at the bottom (as // "total" rows, for example). This is B&R, since what you're supposed // to do is put them in a tfoot. So, if there are sortbottom rows, // for backwards compatibility, move them to tfoot (creating it if needed). sortbottomrows = []; for (var i=0; i
Today's data visualization exercise features the Bureau of Labor Statistics' data reporting the number of U.S. teens working either full or part-time, which goes back to January 1968. Our first chart improves on the BLS' data, by showing how both full and part-time working 16 to 19 year olds make up the complete teen employment scene:
Looking at the chart, we see that full-time jobs for teens peaked in 1979, while we see that part-time jobs for teens peaked in 1999. Overall, the number of part-time jobs for teens has been more stable than the number of full-time jobs, which have been declining since 1980.
The decline in full-time jobs for teens is especially visible in our second chart, which shows how the relative share of full-time jobs for teens has declined in stages over time:
As a short primer to the reasons why the decline in the relative share of full-time jobs for U.S. teens looks the way it does, we'll point you to one document, which reveals the history of both the U.S. federal and California's minimum wages. Note the timing of when major shifts occur in our two charts with the dates listed....
Labels: data visualization, jobs
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Closing values for previous trading day.
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