// JavaScript Document
var buttonCount = 0;
var min=8;
var max=12;
function increaseFontSize() {
	if(buttonCount == 0 || buttonCount == 1){
	   var p = document.getElementsByTagName('body');
	   for(i=0;i<p.length;i++) {
		  if(p[i].style.fontSize) {
			 var s = parseInt(p[i].style.fontSize.replace("px",""));
		  } else {
			 var s = 15;
		  }
		  if(s!=max) {
			 s += 1;
		  }
		  p[i].style.fontSize = s+"px"
	   }
	   buttonCount++;
   }
}
function decreaseFontSize() {
	if(buttonCount == 1 || buttonCount == 2){
		var p = document.getElementsByTagName('body');
		for(i=0;i<p.length;i++) {
		  if(p[i].style.fontSize) {
			 var s = parseInt(p[i].style.fontSize.replace("px",""));
		  } else {
			 var s = 15;
		  }
		  if(s!=min) {
			 s -= 1;
		  }
		  p[i].style.fontSize = s+"px"
		}   
		buttonCount--;
	}
}