High Contrast JS test

gistfile1.js

// http://www.paciellogroup.com/blog/2011/10/detecting-if-images-are-disabled-in-browsers/

function isHighContrast() {

	var e, c;
//Create a test div
	e = document.createElement("div");
//Set its color style to something unusual
	e.style.color = "rgb(31,41,59)";
//Attach to body so we can inspect it
	document.body.appendChild(e);
//Use standard means if available, otherwise use the IE methods
	c = document.defaultView ? document.defaultView.getComputedStyle(e, null).color : e.currentStyle.color;
//Delete the test DIV
	document.body.removeChild(e);
//get rid of extra spaces in result
	c = c.replace(/ /g, "");
//Check if we got back what we set
//If not we are in high contrast mode
	if (c != "rgb(31,41,59)") {
		return true;
	}
}