var bolBachelorState = false;
var intVersion = Browser.Engine.version * 1;
/*****************************************/
//Switch Between Alternate CSS Styles 
// http://www.thesitewizard.com/javascripts/change-style-sheets.shtml
var style_cookie_name = "style" ;
var style_cookie_duration = 30 ;
function events(){	
	//all tabs grey
	$('master1').setProperty('class', 'master1');	
	$('master2').setProperty('class', 'master2');
	$('master3').setProperty('class', 'master3');
	$('master4').setProperty('class', 'master4');
	$('master5').setProperty('class', 'master5');
	//event tab is black
	$('master6').setProperty('class', 'master6_current');
}
function no_events(){
	//all tabs grey
	$('master1').setProperty('class', 'master1');
	$('master2').setProperty('class', 'master2');
	$('master3').setProperty('class', 'master3');
	$('master4').setProperty('class', 'master4');
	$('master5').setProperty('class', 'master5');
	//event tab is grey
	$('master6').setProperty('class', 'master6');
}
//end
function theme_event(){
	switch_style('opaque');
	events();
	$('public').setStyle('display','none');
	$('study').setStyle('display','none');
	$('apply').setStyle('display','none');
	$('search').setStyle('display','none');
	$('right_panel').setStyle('border-left','4px solid #000000');	

	$('index_panel').setStyle('display','none');
	$('event_panel').setStyle('display','block');
	
	$('right_panel').setStyle('z-index','100');		
	$('event_panel').setStyle('z-index','300');	
}
//try end 2
function switch_style ( css_title )
{
  if(css_title == "opaque"){
  	sub_layer = 1;
  }
  if(css_title == "transparent"){
  	sub_layer = 0;
  }
  var i, link_tag ;
  for (i = 0, link_tag = document.getElementsByTagName("link") ;
    i < link_tag.length ; i++ ) {
    if ((link_tag[i].rel.indexOf( "stylesheet" ) != -1) &&
      link_tag[i].title) {
      link_tag[i].disabled = true ;
      if (link_tag[i].title == css_title) {
        link_tag[i].disabled = false ;
      }
    }
    set_cookie( style_cookie_name, css_title,
      style_cookie_duration );
  }
}
function set_style_from_cookie()
{
  var css_title = get_cookie( style_cookie_name );
  if (css_title.length) {
    switch_style( css_title );
  }
}
function set_cookie ( cookie_name, cookie_value,
    lifespan_in_days, valid_domain )
{

    var domain_string = valid_domain ?
                       ("; domain=" + valid_domain) : '' ;
    document.cookie = cookie_name +
                       "=" + encodeURIComponent( cookie_value ) +
                       "; max-age=" + 60 * 60 *
                       24 * lifespan_in_days +
                       "; path=/" + domain_string ;
}
function get_cookie ( cookie_name )
{
  
    var cookie_string = document.cookie ;
    if (cookie_string.length != 0) {
        var cookie_value = cookie_string.match (
                        '(^|;)[\s]*' +
                        cookie_name +
                        '=([^;]*)' );
        return decodeURIComponent ( cookie_value[2] ) ;
    }
    return '' ;
}
/*****************************************/
switch_style('transparent');
window.addEvent('domready', function() {					 
	$('index').addEvent('click', function(event) {
		//click index
		$('public').setStyle('display','block');
		$('study').setStyle('display','block');
		$('apply').setStyle('display','block');
		$('search').setStyle('display','block');
		$('right_panel').setStyle('border-left','2px solid #D1D1D1');	
		$('index_panel').setStyle('display','block');
		$('about_panel').setStyle('display','none');
		$('right_panel').setStyle('z-index','2');
		$('contact_panel').setStyle('display','none');
		$('event_panel').setStyle('display','none');
		//prevent the page from changing
		event.stop();
	});
//	$('event').addEvent('click', function(event) {	
//		//click event
//		$('public').setStyle('display','none');
//		$('study').setStyle('display','none');
//		$('apply').setStyle('display','none');
//		$('search').setStyle('display','none');
//		$('right_panel').setStyle('border-left','4px solid #000000');	
//	
//		$('index_panel').setStyle('display','none');
//		$('event_panel').setStyle('display','block');
//		
//		$('right_panel').setStyle('z-index','100');		
//		$('event_panel').setStyle('z-index','300');
//		
//		//prevent the page from changing
//		event.stop();
//	});
});
function toggleBachelors(){
	//alert(intVersion);
	if(bolBachelorState){// close
		// change bg image
		
		$('showbachelors').setStyle('background', 'transparent url(http://pzwart.wdka.nl/wp-content/themes/pzi-theme/images/arrowLeft.png) repeat scroll right top');
		var myFx = new Fx.Tween($('left_panel'), {duration:1000, transition: Fx.Transitions.Quad.easeInOut});
		//myFx.start('margin-left', '-285px');
		myFx.start('margin-left', '-160px');
		var myFx2 = new Fx.Tween($('right_panel'), {duration:1000, transition: Fx.Transitions.Quad.easeInOut});
		myFx2.start('margin-left', '267px');	

		bolBachelorState = false;
	}
	else{// open
		// change bg image
		$('showbachelors').setStyle('background', 'transparent url(http://pzwart.wdka.nl/wp-content/themes/pzi-theme/images/arrowRight.png) repeat scroll right top');		
		// slide open
		var myFx = new Fx.Tween($('left_panel'), {duration:1000, transition: Fx.Transitions.Quad.easeInOut});
		myFx.start('margin-left', '0px');
			var myFx2 = new Fx.Tween($('right_panel'), {duration:1000, transition: Fx.Transitions.Quad.easeInOut});
		//	myFx2.start('margin-left', '552px');
		myFx2.start('margin-left', '427px');

		bolBachelorState = true;	
	}	
}