// Setup variable for the cookiename, get the correct cookie
var receivedCookieData = getCookie("fontsize");
document.body.style.fontSize=receivedCookieData;
if(receivedCookieData == null)
{
	//document.body.style.fontSize = '80%';
	document['shrinkImage'].src = "images/northyorkscc/common/text_shrink_grey.gif";
	document['shrinkImage'].alt = "Decrease font";
}
	
if(receivedCookieData == '80%')
{
	document['shrinkImage'].src = "images/northyorkscc/common/text_shrink_grey.gif";
	document['shrinkImage'].alt = "Decrease font";
}
if(receivedCookieData == '140%')
{
	document['enlargeImage'].src = "images/northyorkscc/common/text_enlarge_grey.gif";
	document['enlargeImage'].alt = "Increase font";
}


// Get cookie function - Return the value of the cookie
function getCookie(name)
{
    var dc = document.cookie;
    var prefix = name + "=";
    var begin = dc.indexOf("; " + prefix);
    if (begin == -1) {
        begin = dc.indexOf(prefix);
        if (begin != 0) return null;
    } else {
        begin += 2;
    }
    var end = document.cookie.indexOf(";", begin);
    if (end == -1) {
        end = dc.length;
    }
    return unescape(dc.substring(begin + prefix.length, end));
}

// 
function Shrink()
{
	var CurrentSize = "";
	// change size
	switch(document.body.style.fontSize)
	{
		case '140%':
			CurrentSize='120%';
			document['enlargeImage'].src = "images/northyorkscc/common/text_enlarge.gif";
			break;
		case '120%':
			CurrentSize='100%';
			break;
		case '100%':
			CurrentSize='80%';
			document['shrinkImage'].src = "images/northyorkscc/common/text_shrink_grey.gif";
			document['shrinkImage'].alt = "Decrease font";
			break;
	}
	if(CurrentSize.length > 0)
	{
		document.body.style.fontSize=CurrentSize;
		document.cookie = "fontsize=" + CurrentSize;
	}
}
function Grow()
{
	var CurrentSize = "";
	// change size
	switch(document.body.style.fontSize)
	{
		case '80%':
		case '':
			CurrentSize='100%';
			document['shrinkImage'].src = "images/northyorkscc/common/text_shrink.gif";
			break;
		case '100%':
			CurrentSize='120%';
			break;
		case '120%':
			CurrentSize='140%';
			document['enlargeImage'].src = "images/northyorkscc/common/text_enlarge_grey.gif";
			document['enlargeImage'].alt = "Increase font";
			break;
	}
	if(CurrentSize.length > 0)
	{
		document.body.style.fontSize=CurrentSize;
		document.cookie = "fontsize=" + CurrentSize;
	}
}