var opacityMax = 70;
var opacityStart = 0;
var formCode = "";

$(document).ready(function() {	
	$("div.pageUtilBox>a.email").click(function() {		
		grayOut(true);		
	});		
});  


function grayOut(vis) {
	var tempLinkHeight = findGlobalPosY(getElmtRef("emailPageLink")) - $("#emailPage").height();
	var tempLinkLeft = findGlobalPosX(getElmtRef("emailPageLink"));
	//alert(findGlobalPosY(getElmtRef("emailPageLink")));
	//alert($("mainNavContainer").css(offset()));
  // Pass true to gray out screen, false to ungray
  // options are optional.  This is a JSON object with the following (optional) properties
  // opacity:0-100         // Lower number = less grayout higher = more of a blackout 
  // zindex: #             // HTML elements with a higher zindex appear on top of the gray out
  // bgcolor: (#xxxxxx)    // Standard RGB Hex color code
  // grayOut(true, {'zindex':'50', 'bgcolor':'#0000FF', 'opacity':'70'});
  // Because options is JSON opacity/zindex/bgcolor are all optional and can appear
  // in any order.  Pass only the properties you need to set.
  var options = options || {}; 
  var zindex = options.zindex || 1000;
  var opacity = options.opacity || 70;
  var opaque = (opacity / 100);
  var bgcolor = options.bgcolor || '#000000';
  var dark=document.getElementById('darkenScreenObject');
  if (!dark) {
	// The dark layer doesn't exist, it's never been created.  So we'll
	// create it here and apply some basic styles.
	// If you are getting errors in IE see: http://support.microsoft.com/default.aspx/kb/927917
	var tbody = document.getElementsByTagName("body")[0];
	var tnode = document.createElement('div');           // Create the layer.
		tnode.style.position='absolute';                 // Position absolutely
		tnode.style.top='0px';                           // In the top
		tnode.style.left='0px';                          // Left corner of the page
		tnode.style.overflow='hidden';                   // Try to avoid making scroll bars            
		tnode.style.display='none';                      // Start out Hidden
		tnode.id='darkenScreenObject';                   // Name it so we can find it later
	tbody.appendChild(tnode);                            // Add it to the web page
	dark=document.getElementById('darkenScreenObject');  // Get the object.
	//dark.onclick = function(){grayOut(false);};
  }
  if (vis) {
	// Calculate the page width and height 
	if( document.body && ( document.body.scrollWidth || document.body.scrollHeight ) ) {
		var pageWidth = document.body.scrollWidth+'px';
		var pageHeight = document.body.scrollHeight+'px';
	} else if( document.body.offsetWidth ) {
	  var pageWidth = document.body.offsetWidth+'px';
	  var pageHeight = document.body.offsetHeight+'px';
	} else {
	   var pageWidth='100%';
	   var pageHeight='100%';
	}   
	//set the shader to cover the entire page and make it visible.
	
	dark.style.zIndex=zindex;        
	dark.style.backgroundColor=bgcolor;  
	dark.style.width= pageWidth;
	dark.style.height= pageHeight;
	dark.style.display='block';  
	fadeIn(tempLinkHeight,tempLinkLeft);		                        
  } else {  
	hideEmailPageForm();	
	fadeOut();		
  }
}	
function fadeIn(tempLinkHeight,tempLinkLeft){		
	dark=document.getElementById('darkenScreenObject'); 
	dark.style.opacity=opacityStart/100;                      
	dark.style.MozOpacity=opacityStart/100;                   
	dark.style.filter='alpha(opacity='+opacityStart+')';
	opacityStart = opacityStart + 5;
	if (opacityStart <= opacityMax){
		setTimeout ("fadeIn("+tempLinkHeight+","+tempLinkLeft+");", 1);
	}else{
		opacityStart = 0;	
		showEmailPageForm(tempLinkHeight,tempLinkLeft);			
	}
}
function fadeOut(){		
	dark=document.getElementById('darkenScreenObject'); 
	dark.style.opacity=opacityMax/100;                      
	dark.style.MozOpacity=opacityMax/100;                   
	dark.style.filter='alpha(opacity='+opacityMax+')';
	opacityMax = opacityMax - 5;
	if (opacityMax >= opacityStart){
		setTimeout ("fadeOut();", 1);
	}else{
		opacityMax = 70;
		dark.style.display='none';				
	}
}	
function showEmailPageForm(tempLinkHeight,tempLinkLeft){
	if(formCode === ""){
		formCode = $("#daBod").html();
	}	
	$("#emailPage").show();			
	$("#emailPage").css("top",tempLinkHeight);
	$("#emailPage").css("left",tempLinkLeft);	

}
function hideEmailPageForm(){		
	$("#daBod").html(formCode);		
	$("#emailPage").hide();	
}
pageLocation = "";
pageLocation = pageLocation + document.location;
pageDomain = document.domain;
pageLocation = pageLocation.split(pageDomain);
pageLocation = pageLocation[1].split("#");
if(location.search){
	pageLocation = pageLocation[0].split(location.search);
}
function emailPage(){
	var recip = $("#recip").val();	
	var sender = $("#sender").val();	
	if (!isEmail(recip)){
		alert('Please enter a valid email address.');
		$("#recip").focus()
		return false;
	}
	if (!isEmail(sender)){
		alert('Please enter a valid email address.');
		$("#sender").focus()
		return false;
	}
	var comment = $("#comment").val();	
	$("#daBod").html("Sending...<br/><br/>");
	var pars = "comment=" + comment + "&recip=" + recip + "&sender=" + sender + "&page=" + pageLocation[0];
	//alert(pars);
	$.ajax({
		type: "GET",
		url: "/email_page/email_page.asp",
		data: pars,
		async: true,
		success: function(msg){
			$("#daBod").html(msg);
		}
	});
};
function isEmail(input) {
	return /^[a-zA-Z0-9']{1}([\._a-zA-Z0-9-']+)(\.[_a-zA-Z0-9-']+)*@[a-z0-9-]+(\.[a-z0-9-]+){1,3}$/.test(input);
}
function findGlobalPosX(obj) {
	var curleft = 0;
	if (obj.offsetParent) {
		while (obj.offsetParent) {
			curleft += obj.offsetLeft;
			obj = obj.offsetParent;
		}
	} else if (obj.x) {
		curleft += obj.x;
	}
	return curleft;
}
function findGlobalPosY(obj) {
	var curtop = 0;
	if (obj.offsetParent) {
		while (obj.offsetParent) {
			curtop += obj.offsetTop;
			obj = obj.offsetParent;
		}
		curtop += 1;
	} else if (obj.y) {
		curtop += obj.y;
	}
	return curtop;
}
function getElmtRef(strElmtId) {
	if (!document.getElementById) {
		return document.all[strElmtId];
	} else {
		return document.getElementById(strElmtId);
	}
}