/* increasing and decreasing text size.
how this works:
1- loop through all of the stylesheets
2 - check if they have a title
3 - check if that title contains "article" (indicates our article stylesheet)
4 - disable all article stylesheets
5 - enable the next size up or down.
6 - exit, enjoy the day.
*/
var sz=11 //default stylesheet
function selectStyleSheet(dir) {
	var li; // link items - that is, stylesheets
	//make sure we're under limit
	if (8<sz+dir&&sz+dir<18){
		for(var i=0; li=document.getElementsByTagName("link")[i]; i++) {
			// get stylesheets
			if(li.getAttribute("rel").indexOf("style") != -1 && li.getAttribute("title")) {
				//alert("found a style " + li.getAttribute("title"));
				if(li.getAttribute("title").indexOf("news") !=-1) li.disabled = true;
				// check if 1 - it's a stylesheet with a title, 2- if it is an article stylesheet, disable it
				if (li.getAttribute("title").indexOf(sz+dir)>-1)li.disabled = false;
				// if it's the next in line, enable it
			}
		}
		//don't forget to increment the size, so we know what's next....
		sz=sz+dir;
	}
}