function loadFriendEmailer(webref)

{

//	$('').innerHTML = "";

	new Ajax.Request("?page=property_details&webref=" + webref,

     {

		onSuccess : function(response, json) 

		{

		    $('mail_friend_div').innerHTML = response.responseText;

	       	showFriendEmailer();

		},

		onFailure : function(response)

		{

		    alert('Error loading agents');

		},

		parameters : "doemailfriend=true&content=main&webref=" + webref

	}

    );

}



function showFriendEmailer()

{

	div = $('mail_friend_div');

	var arrayPageSize = get_page_size();

	var arrayPageScroll = get_page_scroll();

	if(div.visible())

	{

		Effect.Fade(div,{queue: 'end', scope: 'togglebar', duration:.5})

		$('backOverlay').style.display = 'none';

		if(div.visible())

		{

			div.style.display = 'none';

			$('backOverlay').style.display = 'none';

		}

	}

	else

	{

		createBackground("showFriendEmailer();");

		div.style.top 		= (arrayPageScroll[1] + (arrayPageSize[3] / 15)) + "px";

		div.style.left 		= (arrayPageSize[2] / 4) + "px";

		Effect.Appear(div,{queue: 'end', scope: 'togglebar', duration:.5})

		$('backOverlay').style.height = (arrayPageSize[1] + 1000) + "px";

		$('backOverlay').style.display = 'block';		

	}

	

}



function createBackground(functionName)

{

	if(!document.getElementById('backOverlay'))

	{

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

			

		var objOverlay = document.createElement("div");

		objOverlay.setAttribute('id','backOverlay');

		objOverlay.style.display = 'none';

		objOverlay.onclick = function() { eval(functionName); return false; }

		objBody.appendChild(objOverlay);

	}

}



function get_page_scroll(){



	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;

}



function get_page_size(){

	

	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 doEmailSend (webref)

{

	if ($('user_email').value.length < 2 || $('friend_email').value.length < 2 || $('email_subject').value.length < 2) {

		alert("Please be sure to enter your e-mail address, your friends, and a short subject line.");

		return;

	}

	

	new Ajax.Request("index.php",

    {

		onSuccess : function(response, json) 

		{

			alert('Email has been sent.');

			

		},

		onFailure : function(response)

		{

		    alert('Error sending email. Please try again.');

		},

		parameters : "page=property_details&sendfriendemail=true&content=main&webref=" + webref + "&user_email=" + $('user_email').value + "&friend_email=" + $('friend_email').value + "&email_subject=" + $('email_subject').value + "&email_message=" + $('email_message').value

	}

    );

    showFriendEmailer();

}