// JavaScript Document

function setimgsize(to) {
	imgsize = to;
	document.getElementById('but1080').className='button';
	document.getElementById('but720').className='button';
	document.getElementById('but'+imgsize).className='buttonon';
}

function showbut(button) {
	document.getElementById('butA').className='button';
	document.getElementById('butB').className='button';
	document.getElementById('butAB').className='button';
	document.getElementById('butBA').className='button';
	document.getElementById('but'+button).className='buttonon';
}

function show(element) {
	hide('toggle1080a');
	hide('toggle1080b');
	hide('toggle720a');
	hide('toggle720b');
	hide('ab1080');
	hide('ab720');
	hide('ba1080');
	hide('ba720');
	document.getElementById(element).className='container'; //alert(element + ':' + document.getElementById(element).className);
}

function hide(element) {
	document.getElementById(element).className='hidden'; //alert(document.getElementById(element).className)
}

function moveslider(slider) {
	sliderleft = slider.style.left;
	percent = (parseInt(sliderleft)/149);
	w1080 = parseInt(1920*percent) + 'px';
	w720 = parseInt(1280*percent) + 'px';
	document.getElementById('ab1080a').style.width = w1080;
	document.getElementById('ab720a').style.width = w720;
	document.getElementById('ba1080b').style.width = w1080;
	document.getElementById('ba720b').style.width = w720;
}


// http://www.quirksmode.org/js/cookies.html
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 0;
}

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