function printPage() {
	var left = document.getElementById('section3');
	var right = document.getElementById('section4');
	if (!left || !right)
		return false;
	
	//disable links to in printversion
	var contentLeft = left.innerHTML;
	var contentRight = right.innerHTML;
	contentLeft = contentLeft.replace(/href/gi,"hrefdisabled");
	contentLeft = contentLeft.replace(/onclick/gi,"onclickdisabled");
	contentRight = contentRight.replace(/href/gi,"hrefdisabled");
	contentRight = contentRight.replace(/onclick/gi,"onclickdisabled");

	//open popup and call print dialog
	window.print = '<div id="header"><a href="/"><div class="logo" title="Sprekersplatform - exclusiviteit in topsprekers"></div></a></div><br><table><tr><td valign=top>'+contentLeft+'</td><td valign=top style="padding-left: 15px;">'+contentRight+'</td></tr></table>';
	var w =  window.open('/print/');
}

function mailSpreker(id) {
	if (!id)
		return false;
	
	popup('/doorsturen/index.php?spreker='+id,'stuurdoor',400,300);
}

function displayEmptyImage(el) {
	if (el)
		el.src = '/images/dot_clear.gif';
}

function toggleReference(id) {
	var el = document.getElementById('reference_'+id);
	if (!el)
		return false;
	
	if (el.style.display == 'block')
		el.style.display = 'none';
	else
	 	el.style.display = 'block';
}

function createCorners(el) {
	if (!el) return;
	
	var className = 'top';
	var start = '<p class='+className+'1></p><p class='+className+'2></p><p class='+className+'3></p><p class='+className+'4></p><div>'; 
	var end = '</div><p class='+className+'4></p><p class='+className+'3></p><p class='+className+'2></p><p class='+className+'1></p>';
	el.innerHTML = start + el.innerHTML +  end;
}

function initCorners() {
	var mainsite = document.getElementById('mainsite');
	if (!mainsite)
		return;
	
    var elements = mainsite.getElementsByTagName("DIV");
    for (var i = 0;i < elements.length;i++){
        if (elements[i].className.indexOf(" ") >= 0){
            var classes = elements[i].className.split(" ");
            for (var j = 0;j < classes.length;j++) {
                if (classes[j] == 'bannerGeel' || classes[j] == 'bannerRood' || classes[j] == 'containerBoekbutton')
					createCorners(elements[i]);
            }
        }
        else if (elements[i].className == 'bannerGeel' || elements[i].className == 'bannerRood' || elements[i].className == 'containerBoekbutton')
			createCorners(elements[i]);
    }
}

function sfHover() {
	var template = document.body.className;
	if (document.getElementById("nav")) {
		var sfEls = document.getElementById("nav").getElementsByTagName("LI");
		for (var i=0; i<sfEls.length; i++) {
			sfEls[i].onmouseover=function() {
				this.className+=" sfhover";
			}
			sfEls[i].onmouseout=function() {
				this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
			}
		}
	}
}

/**
 * Initialise sfHover function for dropdown menu in IE
 */
if (window.attachEvent)
	window.attachEvent("onload", sfHover);