function Set_Cookie( name, value, expires, path, domain, secure ) {
	// set time, it's in milliseconds
	var today = new Date();
	today.setTime( today.getTime() );
	/*
	if the expires variable is set, make the correct 
	expires time, the current script below will set 
	it for x number of days, to make it for hours, 
	delete * 24, for minutes, delete * 60 * 24
	*/
	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() : "" ) + 
		( ( path ) ? ";path=" + path : "" ) + 
		( ( domain ) ? ";domain=" + domain : "" ) +
		( ( secure ) ? ";secure" : "" );
}

function Get_Cookie( 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 Delete_Cookie( name, path, domain ) {
	if ( Get_Cookie( name ) ) document.cookie = name + "=" +
		( ( path ) ? ";path=" + path : "") +
		( ( domain ) ? ";domain=" + domain : "" ) +
		";expires=Thu, 01-Jan-1970 00:00:01 GMT";
}

function font_resizer_init() {
	font_resizer_minSize = 9;
	font_resizer_maxSize = 15;
	font_resizer_unit = "px";
	font_resizer_size = parseInt(Get_Cookie("font_resizer_size"));
	if(!font_resizer_size) {
		font_resizer_size = 11;
	}
	document.body.style.fontSize = (font_resizer_size) + font_resizer_unit;
}

function font_resizer_set(font_value) {
	font_resizer_size += font_value;
	if(font_resizer_size > font_resizer_maxSize) {
		font_resizer_size = font_resizer_maxSize;
		alert("maximale grootte");
	}
	if(font_resizer_size < font_resizer_minSize) {
		font_resizer_size = font_resizer_minSize;
		alert("minimale grootte");
	}
	Set_Cookie( "font_resizer_size", font_resizer_size, 30);
	document.body.style.fontSize = (font_resizer_size) + font_resizer_unit;
}

function font_resizer_reset() {
	document.body.style.fontSize = "";
	Delete_Cookie("font_resizer_size");
	font_resizer_init();
}