//Displays and hides the cupcake order form
//This script is adaptation of:
// Lightbox v2.03, by Lokesh Dhakar - http://www.huddletogether.com
// which is released under the Creative Commons Attribution 2.5 License - http://creativecommons.org/licenses/by/2.5/


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 showOrderForm() {
	
	
	var objBody = document.getElementsByTagName("body").item(0);
			
	var objOverlay = document.createElement("div");
	objOverlay.setAttribute('id','order_overlay');
	objOverlay.style.display = 'none';
	objBody.appendChild(objOverlay);
	
	element = document.getElementById("order_form");
	element.innerHTML = '<img id="close_button" src="order_form/layout/media/close_button.png" alt="Close this form" onclick="closeOrderForm()" /><iframe id="orderframe" src="order_form/index.php"></iframe>';
	
	// stretch overlay to fill page and fade in
	var arrayPageSize = getPageSize();
		Element.setHeight('order_overlay', arrayPageSize[1]);
	
	new Effect.Appear('order_overlay', { duration: .75, from: 0.0, to: 0.8 });
	
	new Effect.Appear('order_form', { duration: .75, queue: 'end', from: 0.0, to: 1 });
	

}

function closeOrderForm() {

var objBody = document.getElementsByTagName("body").item(0);

element = document.getElementById("order_overlay");
objBody.removeChild(element);


element = document.getElementById("order_form");
element.style.display="none";


}