function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = ""; expires="" + date.toGMTString();
	}
	else { 
		var expires = "";
	}
	document.cookie = name+"="+value + "; expires="+expires+"; path=/";
}

function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

function eraseCookie(name) {
	createCookie(name,"",-1);
}

 
document.getElementsByClassName = function(clsName) {
	var i, elements, found, re; re = new RegExp("\\b"+clsName+"\\b");
	found = new Array();
	elements = document.all ? document.all : document.getElementsByTagName('*');
	for (i=0; i<elements.length; ++i) {
		if (elements[i].className.search(re) != -1) {
			found[found.length] = elements[i];
		}
	}
	return found;
}

function setFontSizeByClass(clsName, px) {
	var i, a;
	a = document.getElementsByClassName(clsName);
	for (i=0; i<a.length; ++i) {
		a[i].style.fontSize = px + 'px';
	}
}


var min=10;
var max=14;

var nodes = new Array("menu","content_cms_home","description_box","content_cms","content_large","content_large_white");

function initFontSize(){
		//eraseCookie('fontsize');
		var s = Number(readCookie('fontsize'));
		if(s>14){
			s=10;
		}
		if(s<10){
			s=10;
		}
		if(s==0){
			s=10;
		}
		for(i=0;i<nodes.length;i++) {
				setFontSizeByClass(nodes[i],s);
				createCookie('fontsize',s,7)
		}
		createCookie('fontsize',s,7)
}


function increaseFontSize() {
		var s = Number(readCookie('fontsize'));
		
	 	if(s!=max) {
			s += 2;
		}
		for(i=0;i<nodes.length;i++) {
				setFontSizeByClass(nodes[i],s);
				createCookie('fontsize',s,7)
		}
		createCookie('fontsize',s,7)
}

function decreaseFontSize() {
		var s = Number(readCookie('fontsize'));
	 	if(s!=min) {
			s -= 2;
		}
		for(i=0;i<nodes.length;i++) {
				setFontSizeByClass(nodes[i],s);
				createCookie('fontsize',s,7)
		}
		createCookie('fontsize',s,7)
}
/*

function initFontSize(){
	if(readCookie('fontsize')!=null){
			var p = null;
			for(i=0;i<nodes.length;i++) {
				p = document.getElementById(nodes[i])
				if(p!=null){  
					  if(p.style.fontSize) {
						 var s = parseInt(p.style.fontSize.replace("px",""));
					  } else {
						 var s = readCookie('fontsize');
					  }
					  p.style.fontSize = s+"px"
					  createCookie('fontsize',s,7)
				}
			}
	} else {
		createCookie('fontsize','10',7)
	}
}

function increaseFontSize() {
	var p = null;
	for(i=0;i<nodes.length;i++) {
		p = document.getElementById(nodes[i])
		if(p!=null){
			  if(p.style.fontSize) {
				 var s = parseInt(p.style.fontSize.replace("px",""));
			  } else {
				 var s = 10;
			  }
			  if(s!=max) {
				 s += 1;
			  }
			  p.style.fontSize = s+"px"
			  createCookie('fontsize',s,7)
		}
	}
}
function decreaseFontSize() {
	var p = null;
	for(i=0;i<nodes.length;i++) {
		p = document.getElementById(nodes[i])
		if(p!=null){
			if(p.style.fontSize) {
				 var s = parseInt(p.style.fontSize.replace("px",""));
			  } else {
				 var s = 10;
			  }
			  if(s!=min) {
				 s -= 1;
			  }
			  p.style.fontSize = s+"px"
			  createCookie('fontsize',s,7)
		}
   } 
}
*/