var textsize = 100;
function changetextsize(up){
	if(up){
		if (textsize < 140) {
			textsize = parseFloat(textsize)+20;
		}
	}else{
		if (textsize > 80) {
			textsize = parseFloat(textsize)-20;
		}
	}
	fsize(textsize,'%','container');
}

function fsize(size,unit,id){
	var vfontsize = document.getElementById(id);
	if(vfontsize){
		vfontsize.style.fontSize = size + unit;
		createCookie("textsizestyle", textsize, 365);
		if (size > 100) {
			setClassStyle('lokatie','width','500px');
			setClassStyle('#lokaties h1','width','320px');
			setClassStyle('#lokaties p','width','320px');
		} else {
			setClassStyle('lokatie','width','269px');
			setClassStyle('#lokaties h1','width','90px');
			setClassStyle('#lokaties p','width','99px');
		}
	}
}

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+"; 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 setClassStyle(classname,class_style,style_value){
	var style_sheet=document.styleSheets[1];
	if(!style_sheet){return;}
	var sRules = style_sheet.cssRules || style_sheet.rules;
	for(var j = sRules.length ; j-- ; ){
		var sS=sRules[j];
		var class_name=sS.selectorText.replace(/\./g,'');
		var class_name= class_name.toLowerCase();
		if(class_name==classname){
			sS.style[class_style]=style_value;
		break;
		}
	}
}

window.onload = function() {
	var cookie = readCookie("textsizestyle");
	if (cookie > 0) {
		textsize = cookie;
	}
	fsize(textsize,'%','container');
}