function checkBrowserWidth()
{
	var theWidth = getBrowserWidth();
	if (theWidth <= 800) {
		setStylesheet("Font800");
	} else if (theWidth > 800 && theWidth <= 1100) {
		setStylesheet("Font1000");
	} else if (theWidth > 1100) {
		setStylesheet("Font1200");
	}
	return true;
}
function getBrowserWidth()
{
	if (window.innerWidth) {
		return window.innerWidth;
	} else if (document.documentElement && document.documentElement.clientWidth != 0) {
		return document.documentElement.clientWidth;
	} else if (document.body) {
		return document.body.clientWidth;
	}	
	return 0;
}
function setStylesheet(styleTitle) {
	var currTag;
	if (document.getElementsByTagName) {
		for (var i = 0; (currTag = document.getElementsByTagName("link")[i]); i++) {
			if (currTag.getAttribute("rel").indexOf("style") != -1 && currTag.getAttribute("title")) {
				currTag.disabled = true;
				if(currTag.getAttribute("title") == styleTitle) {
					currTag.disabled = false;
				}
			}
		}
	}
	return true;
}