/*
Javascript to dynamically change font sizes on a web page and set font sizes based on innerWidth - Window width....

See http://www.unintentionallyblank.co.uk/2006/08/02/fontsizer/ for inspiration. Cookies removed, though.

*/

/*
//create onDomReady Event
window.onDomReady = DomReady;

//Setup the event
function DomReady(fn)
{
	//W3C
	if(document.addEventListener) {
		document.addEventListener("DOMContentLoaded", fn, false);
	}
	//IE
	else {
		document.onreadystatechange = function(){readyState(fn)}
	}
}

//IE execute function
function readyState(fn) {
	//dom is ready for interaction
	if(document.readyState == "interactive") {
		fn();
	}
}


//execute as soon as DOM is loaded
window.onDomReady(RxInit);
*/

if (window.addEventListener) //DOM method for binding an event
window.addEventListener("load", RxInit, false)
else if (window.attachEvent) //IE exclusive method for binding an event
window.attachEvent("onload", RxInit)
else if (document.getElementById) //support older modern browsers
window.onload=RxInit


function setFontByTag(e, v) {
	var elements = document.getElementsByTagName(e);
	for(var i = 0; i < elements.length; i++) {
		elements.item(i).style['fontSize'] = v;
		}
	}

function setFontByID(e, v) {
	var element = document.getElementById(e);
	element.style['fontSize'] = v;
	}
	
function changeSize(inc) {
	var sizes = new Array('0.9', '1', '1.1', '1.2', '1.3');
	var si = 1;
	if(readCookie('fs')) { si = parseInt(readCookie('fs')); }
	if (!document.getElementsByTagName) {return false;}
	if (inc == '1') { 
		si+=1;
		if (si>4) si=4;
		}
	else if (inc == '-1') { 
		si-=1;
		if (si<0) si=0;
		}
	setFontByTag('body', sizes[si]+'em');
	
	}

function RxIndex(lWidth) {
  if (lWidth > 1599)
    return 4;
  if (lWidth > 1399)
    return 3;
  if (lWidth > 1199)
    return 2;
  if (lWidth > 800)
    return 1;
  return 0;
}	
	
function RxInit() {
	var sizes = new Array('0.9', '1', '1.1', '1.2', '1.3');
	if (browser.isIE)
	  var thisWidth = document.body.offsetWidth;
	else   
	  var thisWidth = self.innerWidth;
  
	// alert('resizing'+thisWidth);
	/*
	if (thisWidth > 800) {
		var i = RxIndex(thisWidth);
		setFontByTag('body',sizes[i]+'em');
	}
	*/
}

function pResize(i) {
	var sizes = new Array('0.8', '1', '1.1', '1.2');
  setFontByTag('body',sizes[i]+'em');
}