function bestellen(id,extra) {
	selectHide();
	ovl = document.getElementById('overlay');
	ovl.style.display = 'block';
	var height = 300;
	var width = 650;
	cnt = document.getElementById('overlaycontent');
	halfwidth=(parseInt(width)/2)+20;
	halfheight=(parseInt(height)/2);
	cnt.style.display = 'block';
	cnt.style.width = width+'px';
	cnt.style.marginLeft = -halfwidth+'px';
	document.getElementById('overlaycontent').innerHTML='<p align=\"center\"><img src=\"/i/indicator-large.gif\" alt=\"loading...\" title=\"loading...\" /></p>';
	if (self.pageYOffset) {
		the_y = self.pageYOffset;
	} else if (document.documentElement && document.documentElement.scrollTop){
		the_y = document.documentElement.scrollTop;
	}else if (document.body){
		the_y = document.body.scrollTop;
	}
	var cmar = (parseInt(the_y));
	cnt.style.marginTop = cmar+'px';
	var pagearray = getPageSize();
	ovl.style.height = pagearray[1]+'px'
	var bestelreq = new Request.HTML({url:'/bestellen/tickets/'+id+'/~1'+extra, update:$('overlaycontent')}).send();
}

function showlightbox(url) {
	selectHide();
	ovl = document.getElementById('overlay');
	ovl.style.display = 'block';
	var height = 300;
	var width = 800;
	cnt = document.getElementById('overlaycontent');
	halfwidth=(parseInt(width)/2)+20;
	halfheight=(parseInt(height)/2);
	cnt.style.display = 'block';
	cnt.style.width = width+'px';
	cnt.style.marginLeft = -halfwidth+'px';
	document.getElementById('overlaycontent').innerHTML='<p align=\"center\"><img src=\"/i/indicator-large.gif\" alt=\"loading...\" title=\"loading...\" /></p>';
	if (self.pageYOffset) {
		the_y = self.pageYOffset;
	} else if (document.documentElement && document.documentElement.scrollTop){
		the_y = document.documentElement.scrollTop;
	}else if (document.body){
		the_y = document.body.scrollTop;
	}
	var cmar = (parseInt(the_y));
	cnt.style.marginTop = cmar+'px';
	var pagearray = getPageSize();
	ovl.style.height = pagearray[1]+'px'
	var bestelreq = new Request.HTML({url: url, update:$('overlaycontent')}).send();
}

function selectHide(){
	selects = document.getElementsByTagName("select");
	for (i = 0; i != selects.length; i++) {
		selects[i].style.visibility = "hidden";
	}
	selects = document.getElementsByTagName("iframe");
	for (i = 0; i != selects.length; i++) {
		selects[i].style.visibility = "hidden";
	}
}
function selectShow(){
	selects = document.getElementsByTagName("select");
	for (i = 0; i != selects.length; i++) {
		selects[i].style.visibility = "visible";
	}
	selects = document.getElementsByTagName("iframe");
	for (i = 0; i != selects.length; i++) {
		selects[i].style.visibility = "visible";
	}
}

function sluiten() {
	document.getElementById('overlaycontent').innerHTML='';
	style = document.getElementById('overlay').style;
	style.display = 'none';
	style2 = document.getElementById('overlaycontent').style;
	style2.display = 'none';
	selectShow();
}

function getPageSize(){
	var xScroll, yScroll;
	if (window.innerHeight && window.scrollMaxY) {
		xScroll = document.body.scrollWidth;
		yScroll = window.innerHeight + window.scrollMaxY;
	} else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
		xScroll = document.body.scrollWidth;
		yScroll = document.body.scrollHeight;
	} else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
		xScroll = document.body.offsetWidth;
		yScroll = document.body.offsetHeight;
	}
	var windowWidth, windowHeight;
	if (self.innerHeight) { // all except Explorer
		windowWidth = self.innerWidth;
		windowHeight = self.innerHeight;
	} else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
		windowWidth = document.documentElement.clientWidth;
		windowHeight = document.documentElement.clientHeight;
	} else if (document.body) { // other Explorers
		windowWidth = document.body.clientWidth;
		windowHeight = document.body.clientHeight;
	}
	// for small pages with total height less then height of the viewport
	if(yScroll < windowHeight){
		pageHeight = windowHeight;
	} else {
		pageHeight = yScroll;
	}
	// for small pages with total width less then width of the viewport
	if(xScroll < windowWidth){
		pageWidth = windowWidth;
	} else {
		pageWidth = xScroll;
	}
	arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight)
	return arrayPageSize;
}

function cp_confirm(message,url) {
        var answer = confirm(message);
        if (answer) {
                document.location = url;
        }
}