/**
*	Overlay Fade
*	
*	by Peter Welch
*	peter@beepix.com
*
*	Inspired by and adapted from Lightbox
*
*	code released under MIT style license (http://www.opensource.org/licenses/mit-license.php)
*
*	requires prototype and prototype.ext
*
**/
Object.extend(Element, {
	getWidth: function(element) {
	   	element = $(element);
	   	return element.offsetWidth; 
	},
	setWidth: function(element,w) {
	   	element = $(element);
    	element.style.width = w +"px";
	},
	setHeight: function(element,h) {
   		element = $(element);
    	element.style.height = h +"px";
	},
	setTop: function(element,t) {
	   	element = $(element);
    	element.style.top = t +"px";
	},
	setSrc: function(element,src) {
    	element = $(element);
    	element.src = src; 
	},
	setHref: function(element,href) {
    	element = $(element);
    	element.href = href; 
	},
	setInnerHTML: function(element,content) {
		element = $(element);
		element.innerHTML = content;
	}
});

var OverFade = Class.create();
OverFade.prototype = {
	initialize: function() {
		var objBody = document.getElementsByTagName("body").item(0);
			
		var objShell = document.createElement("div");
		objShell.setAttribute('id','overfade');
		objShell.style.display = 'none';
		Element.setStyle(objShell,
		{
			'position': 'absolute',
			'top':'0',
			'left':' 0',
			'z-index':'90',
			'width':'100%',
			'height':'500px',
			'background-color':'#000',
			'filter':'alpha(opacity=60)',
			'-moz-opacity':'0.6',
			'opacity':'0.6'
		});
		objShell.onclick = function() { EmailBox.end(); return false; }
		objBody.appendChild(objShell);
			
		var objFormShell = document.createElement("div");
		objFormShell.setAttribute('id','of_interior');
		objFormShell.style.display = 'none';
		Element.setStyle(objFormShell,
		{
			'position':'absolute',
			'top':'40px',
			'margin':'0 auto',
			'width':'100%',
			'height':'400px',
			'z-index':'100',
			'text-align':'center',
			'line-height':'0'
		});
		
		
		var objEform = document.createElement("div");
		objEform.setAttribute('id','mail_form');
		Element.setStyle(objEform,
		{
			'background':'#fff',
			'display':'block',
			'border':'10px solid #999',
			'position':'relative',
			'margin':'0 auto',
			'width':'500px',
			'height':'450px',
			'z-index':'100',
			'text-align':'left',
			'line-height':'1.5em'
		});
		objEform.innerHTML = 
		'<div id="globalMailForm">'+
			'<form action="" method="post" id="of_form">'+
				'<div id="responseText"></div>'+
				'<div class="formSegment">'+
					'<label>Your Name</label>'+
					'<input type="text" class="txt" name="senderName" value="" />'+
					'<span class="form_warn"></span>'+
				'</div>'+
				'<div class="formSegment">'+
					'<label>Your Email</label>'+
					'<input type="text" class="txt" name="senderEmail" value="" />'+
					'<span class="form_warn"></span>'+
				'</div>'+
				'<div class="formSegment">'+
					'<label>Recipient\'s Email</label>'+
					'<input type="text" class="txt" name="recieverEmail" value="" />'+
					'<span class="form_warn"></span>'+
				'</div>'+
				'<div class="formSegment">'+
					'<label>Subject</label>'+
					'<input type="text" class="txt" name="subject" value="" />'+
					'<span class="form_warn"></span>'+
				'</div>'+
				'<div class="formSegment textarea">'+
					'<label>Message:</label>'+
					'<textarea name="senderNote"></textarea>'+
					'<span class="form_warn"></span>'+
				'</div>'+
				'<input type="button" value="Send" class="submit" name="submit" />'+
				'<input type="button" value="Cancel" onclick="javascript:EmailBox.end()" class="submit" name="cancel" />'+

			'</form>'+
		'</div>'
		;
		objFormShell.appendChild(objEform);
		objBody.appendChild(objFormShell);
	},
	start:function(subj, body, reci) {

		var arrayPageSize = getPageSize();
		var arrayPageScroll = getPageScroll();
		
		$('of_form').recieverEmail.value = unescape(reci);
		$('of_form').subject.value = unescape(subj);
		$('of_form').senderNote.value = unescape(body);
		
		Element.setHeight('overfade', arrayPageSize[1]);
		new Effect.Appear('overfade', { duration: 0.2, from: 0.0, to: 0.8 });
		
		var fadeboxTop = arrayPageScroll[1] + (arrayPageSize[3] / 15);
		
		Element.setTop('of_interior', fadeboxTop);
		Element.show('of_interior');
		
	},

	end: function() {
		Element.hide('of_interior');
		new Effect.Fade('overfade', { duration: 0.2});
	}
}

/* Utility functions */

//
// getPageScroll()
// Returns array with x,y page scroll values.
// Core code from - quirksmode.org
//

function getPageScroll(){

	var yScroll;

	if (self.pageYOffset) {
		yScroll = self.pageYOffset;
	} else if (document.documentElement && document.documentElement.scrollTop){	 // Explorer 6 Strict
		yScroll = document.documentElement.scrollTop;
	} else if (document.body) {// all other Explorers
		yScroll = document.body.scrollTop;
	}

	arrayPageScroll = new Array('',yScroll) 
	return arrayPageScroll;
}

//
// getPageSize()
// Returns array with page width, height and window width, height
// Core code from - quirksmode.org
// Edit for Firefox by pHaez
//

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;
}


var emailLinkActions = Class.create();
emailLinkActions.prototype = Object.extend (this, {
	initialize:function() {},
	
	actionReference: new Array ("click"),
	
	click: function() {
                var varset = this.rel;
/*
		var varset = (this.href.indexOf("#nogo") > -1 ? this.rel : this.href);
		if(this.href.indexOf("#nogo") > -1) this.href = "#nogo";
*/
		var subj = (varset.match(/subject/) ? varset.match(/subject=([^&]*)/)[1] : "");
		var body = (varset.match(/body/) ? varset.match(/body=([^&]*)/)[1] : "");
		var reci = (varset.match(/recipient/) ? varset.match(/recipient=([^&]*)/)[1] : "");
		EmailBox.start(subj,body,reci);
	}
});
var EmailBox;
function overfade_init() {
	$ACTION("a.email", emailLinkActions);
	$ACTION("a.pageActionEmail", emailLinkActions);
	EmailBox = new OverFade();
}

/* Temporarily disabled pending solution; Peter Welch */

//Window.add(overfade_init);