// Add site spesific javascript here

/**
 * Update class names on container for larger text
 * @param size integer 1, 2 or 3
 */
function setFontSize(size) {
	if (size == 1 || size == 2 || size == 3) {
		var elm = $('body');
		for (var i=1;i<4;i++) {
			if (i == size) {
				if (i > 1) {
					elm.addClassName('fontSize' + i);
				}
			} else {
				elm.removeClassName('fontSize' + i);
			}
		}
		
		createCookie('fontsize', size, 30);
	}
}

/**
 * Update the page with the fontsize that is set in cookie, if existing
 */
function updateFontSize() {
	var currentSize = readCookie('fontsize');
	
	if (currentSize > 0) {
		setFontSize(currentSize);
	}
}


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 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 expires = "";
    document.cookie = name+"="+value+expires+"; path=/";
}