var nCookieValue;

function setFontSizeStap(nStap) {
	switch (nStap)
	{
		case 0:
			sFontRelative = '75%';
			break;
		case -1:
			sFontRelative = '60%';
			break;
		case 1:
			sFontRelative = '85%';
			break;
		case 2:
			sFontRelative = '95%';
			break;
			
	}
	document.body.style.fontSize=sFontRelative;	// getCookie('initFontSize');
}

//functie voor het zetten van de events en uitlezen van de eventueel aanwezige cookies
function setSize(){
	//zet algemene fontgrootte op basis van cookie initFontSize
	nCookieValue = getCookie('initFontSize');
	//alert(nCookieValue);
	if (nCookieValue == null) nCookieValue = '0';
	nCookieValue = parseInt(nCookieValue,10);

	setFontSizeStap(nCookieValue);
	//check of de controls aanwezig zijn
	
	if($('#fontGroter')!= null){
		//set mousedownevent van de verschillende a's
		$('#fontGroter').click( function(){
		setLarger();});
		$('#fontKleiner').click( function(){setSmaller();});
		//addEvent ($('fontGroter'),'mousedown',setLarger);
		//addEvent ($('fontKleiner'),'mousedown',setSmaller);
		if ($('#fontNormaal')!=null) {
			$('#fontNormaal').click( function(){resetFont();});
			//addEvent ($('fontNormaal'),'mousedown',resetFont);
		}
	}
}

function setLarger() { 
	if (nCookieValue < 2) {
		nCookieValue++;
		setFontSizeStap(nCookieValue)	;
		setCookie('initFontSize',nCookieValue,7);
	}
}

function setSmaller() {
	if (nCookieValue > -1) {
		nCookieValue--;
		setFontSizeStap(nCookieValue)	;
		setCookie('initFontSize',nCookieValue,7);
	}
}

function resetFont() {
	nCookieValue = 0;
	setFontSizeStap(nCookieValue)	;
	setCookie('initFontSize',nCookieValue,7);
}

/* get, set, and delete cookies */
function getCookie( name ) {
	var start = document.cookie.indexOf( name + "=" );
	var len = start + name.length + 1;
	if ( ( !start ) && ( name != document.cookie.substring( 0, name.length ) ) ) {
		return null;
	}
	if ( start == -1 ) return null;
	var end = document.cookie.indexOf( ";", len );
	if ( end == -1 ) end = document.cookie.length;
	return unescape( document.cookie.substring( len, end ) );
}
	
function setCookie( name, value, expires, path, domain, secure ) {
	var today = new Date();
	today.setTime( today.getTime() );
	if ( expires ) {
		expires = expires * 1000 * 60 * 60 * 24;
	}
	var expires_date = new Date( today.getTime() + (expires) );
	document.cookie = name+"="+escape( value ) +
		( ( expires ) ? ";expires="+expires_date.toGMTString() : "" ) + //expires.toGMTString()
		( ( path ) ? ";path=" + path : "" ) +
		( ( domain ) ? ";domain=" + domain : "" ) +
		( ( secure ) ? ";secure" : "" );
}
	
function deleteCookie( name, path, domain ) {
	if ( getCookie( name ) ) document.cookie = name + "=" +
			( ( path ) ? ";path=" + path : "") +
			( ( domain ) ? ";domain=" + domain : "" ) +
			";expires=Thu, 01-Jan-1970 00:00:01 GMT";
}