function mail () {
	var email = "info"
	var emailHost = "naia.be"
	document.write("<a href=" + "mail" + "to:" + email + "@" + emailHost+ ">" + email + "@" + emailHost+ "<\/a>")
}

function blankLinks() {
 if (!document.getElementsByTagName) return;
 var bLinks = document.getElementsByTagName("a");
 for (var i=0; i<bLinks.length; i++) {
   var bLink = bLinks[i];
   if (bLink.getAttribute("href") &&
       bLink.getAttribute("rel") == "blank")
     bLink.target = "_blank";
 }
}
window.onload = blankLinks;

function change_page(this_page) {
	if(document.getElementById('content_1').Opened == 1){
		Effect.BlindUp('content_1');
		document.getElementById('content_1').Opened = 0;
	}
	if(document.getElementById('content_2').Opened == 1){
		Effect.BlindUp('content_2');
		document.getElementById('content_2').Opened = 0;
	}
	if(document.getElementById('content_3').Opened == 1){
		Effect.BlindUp('content_3');
		document.getElementById('content_3').Opened = 0;
	}
	Effect.BlindDown(this_page, { queue: 'end'});
	document.getElementById(this_page).Opened = 1;
}

function showw(object) {
    if (document.getElementById && document.getElementById(object) != null)
         node = document.getElementById(object).style.display='block';
    else if (document.layers && document.layers[object] != null)
        document.layers[object].display = 'block';
    else if (document.all)
        document.all[object].style.display = 'block';
}

function hidee(object) {
    if (document.getElementById && document.getElementById(object) != null)
         node = document.getElementById(object).style.display='none';
    else if (document.layers && document.layers[object] != null)
        document.layers[object].display = 'none';
    else if (document.all)
         document.all[object].style.display = 'none';
}