Set to Top-Most Element Based on Time

z-index.js

$(this).css('z-index', parseInt((+new Date()).toString().slice(6), 10));

/*

Uses the system time to set the current element's z-index above other elements
on the page. This terrible hack allows me to not have to store the most recent
z-index anywhere. I can't wait to see how it bites me.

Context: I use it with draggables in jQuery UI.

You could set it to `.slice(3) if you don't care about Safari 3 support,
but it really shouldn't matter.

Browser             Max z-index value   When exceeded, value changes to:
Internet Explorer 6 2147483647          2147483647
Internet Explorer 7 2147483647          2147483647
Internet Explorer 8 2147483647          2147483647
Firefox 2           2147483647          *element disappears*
Firefox 3           2147483647          0
Safari 3            16777271            16777271
Safari 4            2147483647          2147483647
Chrome 29           2147483647          2147483647
Opera 9             2147483647          2147483647

Source: http://stackoverflow.com/questions/8565821/css-max-z-index-value

*/