var agt=navigator.userAgent.toLowerCase();

var is_safari = agt.indexOf("safari") != -1;
var is_ie     = ((agt.indexOf("msie") != -1) && (agt.indexOf("opera") == -1));
var is_mac    = (agt.indexOf("mac")!=-1);

var is_ie6     = ((agt.indexOf("msie 6") != -1) && (agt.indexOf("opera") == -1));

window.init_fontsize = 100;


/* lettergrootte aanpassen aan cookiewaarde*/

$(document).ready(function(){  
	
	/* links blur() tbv verbergen focusrandje*/
	links = document.getElementsByTagName("a");
	for (i=0; i<links.length; i++) {
		link = links[i];
		link.onfocus=function(){
			this.blur();
		}
	}

	if(is_ie6) init_hovers("#navigatie li,.expolijst div");

	cookie = getCookie('fontsize');
	window.fontsize = cookie != null ? parseInt(cookie) : window.init_fontsize;
	set_fontsize(null);
		
});
   
// form validatie aanzetten voor alle formulieren
$(document).ready(function(){  
	var forms = document.getElementsByTagName("form");

	for(n=0; n<forms.length; n++){
		var form = forms[n];
		$(form).validate();		
	}
});


//MAILSCRIPT & VALIDATIE

function init_hovers(sel){
	var selectors = sel.split(",");
	for(var s=0; s<selectors.length; s++){
		var selector = selectors[s];
		$(selector).hover(
			function(){$(this).addClass('hover')} ,
			function(){$(this).removeClass('hover')}
		);
	}
}


$(document).ready(function(){  
	/* dt-dd constructie om nieuwsblokken te togglen*/
	links = document.getElementsByTagName("dt");
	for (i=0; i<links.length; i++) {
		if(links[i].className.indexOf('expanded') != -1 || links[i].className.indexOf('collapsed') != -1 ){	
			link = links[i];
			link.onclick = expand_collapse;
		}
	}
});
    

//SCRIPT OM CONTENTBLOKKEN TE TOGGLEN
function expand_collapse(){

	target = $(this).next('dd')[0];
	
	var dt= document.getElementsByTagName("dt");
	var dd= document.getElementsByTagName("dd");
	
	if(this.className.indexOf("collapsed") != -1){
		for (var i=0; i<dd.length; i++){
			dt[i].className = dt[i].className.replace(/expanded/g, 'collapsed');
			dd[i].className = dd[i].className.replace(/expanded/g, 'collapsed');
		}
		
		if(target.innerHTML.length){
			target.className = target.className.replace(/collapsed/g, 'expanded');
			this.className = this.className.replace(/collapsed/g, 'expanded');
		}
	}
	else{
		target.className = target.className.replace(/expanded/g, 'collapsed');
		this.className = this.className.replace(/expanded/g, 'collapsed');
	}
}    



function set_fontsize(elem){
	if(elem){
		if(window.fontsize < 150){
			window.fontsize += 10;
		}
		else{
			window.fontsize = window.init_fontsize;
		}		
	}
	else{
		var style_node = document.createElement("style");
		document.getElementsByTagName("head")[0].appendChild(style_node);
	}
	
	setCookie( 'fontsize', window.fontsize, 10000, '/');
	
	selector = '#content';
	declaration = "{font-size:" + window.fontsize + "% !important;}";	
		
	if(! is_ie && ! is_safari) {
		style_node = document.getElementsByTagName('style')[0]
		style_node.innerHTML = selector + declaration;
		if((typeof $ != 'undefined')&& document.body){
			$(document.body).hide();
			$(document.body).show();
		}			
	}
	else if(is_ie) {
		style_node = document.styleSheets[document.styleSheets.length - 1];
		style_node.addRule(selector, declaration);			
	}
}


/* Cookie management Script [Written by Scott Andrew] */
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";
}