// Validate form fields depending on type
function validateField(oElem, displayid, valType, displayMsg)
{
	var isValid = false;
	var imageRegexp = /\.(jpg|gif|tif|tiff|png)$/i;

	switch (valType)
	{
		case "email": { isValid = /^([^ @]+(?:[^ @]+)*)@([^ @]+(?:[^ @]+)*)\.([^ @]+(?:[^ @]+)*)$/.test(oElem.value); break; }
		case "zipcode": { isValid = /^[0-9]{5}(-[0-9]{4})?$/.test(oElem.value); break; }
		case "nonnull": { isValid = (!trim(oElem.value) == ""); break;}
		case "image": { isValid = imageRegexp.test(oElem.value); break; }
		case "password": { isValid = /^[^\s]{4,15}$/.test(oElem.value); break; }
		case "alphanum": { isValid = /^[A-Za-z0-9]+$/.test(oElem.value); break; }
		case "alpha": { isValid = /^[A-Za-z\-\.]+$/.test(oElem.value); break; }
		case "numeric": { isValid = /^[0-9]+$/.test(oElem.value); break; }
		default: { break; }
	}

	if (isValid == false) { validationMsg(displayid, displayMsg); }

	return isValid;
}

// display form validation message
function validationMsg( fld,		// id of element to display message
						message)  	// string to display
{
	var displaymsg = ""; //alert(message);
	// fixes issue with ie when there is an empty string
	if (/^\s*$/.test(message))
		displaymsg = String.fromCharCode(nbsp);
	else
		displaymsg = message;

	var elem = $(fld);
	if (!elem == null)
		elem.firstChild.nodeValue = displaymsg;
	else
		elem.innerHTML = displaymsg;
}

// Validate photo fields
// Fix bug00041, bug00042, bug00084
function isValidImage()
{
	var noErrs = true;

	// let's clear any existing messages
	$("photoValidate").type="hidden";

	// validate fields this is not working and is preventing upload of valid JPG
	noErrs = validateField(document.getElementById('photo'), 'photoValidate', 'image', 'Please select a valid image type [ jpg,gif,tif,png ].');

	return noErrs;
}

function getUserInfo(username)
{
	var requestURL = getWebrootURI() + "user/getPublicUserInfo?username=" + username;
	var request = new Ajax.Request(requestURL, {method: 'post', onComplete: displayUserInfo});
}

/** Realizes an Ajax request for mail contact */
function requestUserInfoByMail(requestURL)
{
	$('requestlink').style.display = "none";
	$('imageprogress').style.display = "";
	var request = new Ajax.Request(requestURL, {method: 'post', onComplete: completeRequestByMail});
}

function displayUserInfo(request)
{
	dimRightSidebar();
	dimLeftSidebar();
	$('userPopup').style.position = "absolute"; //make it so the dialog floats in the viewport not page
	var resp = request.responseText;
	// if this is a request for volunteering, then changes the height
	if( resp.match(/Thanks for volunteering/) ){
		$('userBody').setStyle({ height: '150px' });
	}else{
		$('userBody').setStyle({ height: '350px' });
	}

	$('userBody').innerHTML = request.responseText;
	var x = 0;
	if (document.documentElement && document.documentElement.scrollTop)
		x = document.documentElement.scrollTop; // ie6+
	else if (document.body.scrollTop)
		x = document.body.scrollTop; // ie5?
	else if (window.pageYOffset)
		x = window.pageYOffset; // moz
	$('userPopup').style.top = (x + 50) + "px"; //top offset in viewport
	$('userPopup').style.left = "100px"; //left offset in viewport
	//alert('Desplegar PopUp')
	$('userPopup').style.display = "";
}

/** Receives the Ajax request done by requestUserInfoByMail function */
function completeRequestByMail(request)
{
	hidePopup();
	$('imageprogress').style.display = "none";
}

function deletePostConfirm(folder, id)
{
    if (confirm('Are you sure you want to delete this forum entry?\nAll comments on this post will also be deleted.'))
    {
	loc = folder + "/deletePost?post=" + id;
	location.href = loc;
    }
}

function deletePostCommentConfirm(folder, post, returnId)
{
	if (confirm('Are you sure you want to delete this comment?'))
	{
		location.href = folder + "/deletePost?post=" + post + "&return=" + returnId;
	}
}

function inactivateAccountConfirm()
{
	if (confirm('Are you sure you want to inactivate this account?'))
	{
		location.href = "inactivateAccount";
	}
}

function deleteAccountConfirm()
{
	if (confirm('If you delete this account your communities will be deleted. Are you sure you want to delete this account?' ))
	{
		location.href = "deleteAccount";
	}
}

function hidePopup()
{
	$('userPopup').style.display = "none";
	liteRightSidebar();
	liteLeftSidebar();
}

function isValidTitle()
{
	var noErrs = true;

	// let's clear any existing messages
	$("titleValidate").type="hidden";

	// validate fields this is not working and is preventing upload of valid JPG
	noErrs = validateField(document.getElementById('title'), 'titleValidate', 'nonnull', 'Please insert a title');

	return noErrs;
}

function open_window(page, width, height) {
	x = (640 - width)/2, y = (480 - height)/2;
    if (screen) {
        y = (screen.availHeight - height)/2;
        x = (screen.availWidth - width)/2;
    }
	window.open (page,  'CtrlWindow','scrollbars=1,top='+ y +',left='+ x +',screenY='+ y +',screenX='+ x +',width=' + width + ',height=' + height);
}

function getWebrootURI()
{
	return httpProtocol + "://" + serverName + "/" + webroot;
}

function trim(stringToTrim)
{
	return stringToTrim.replace(/^\s+|\s+$/g,"");
}

function ltrim(stringToTrim)
{
	return stringToTrim.replace(/^\s+/,"");
}

function rtrim(stringToTrim)
{
	return stringToTrim.replace(/\s+$/,"");
}

function doSearch()
{
	var value = escape(document.getElementById('searchID').value);

	window.location = "/discuss/search?search=" + value;

}

function applyStyles()
{
	$('searchlabel').setStyle({cursor:'pointer'});
	$('searchlabel').setStyle({'text-decoration':'underline'});
}

function unapplyStyles()
{
	$('searchlabel').setStyle({'text-decoration':'none'});
}

function pressEnter(e) {

	key = e.keyCode;
	if(window.event) // IE
	{
	key = e.keyCode;
	}
	else if(e.which) // Netscape/Firefox/Opera
	{
	key = e.which;
	}
	if (key==13) {
		doSearch() //presionaron enter
		return true;
	}else{
		return false
	}
}

function cancel(url)
{
	location.href = url;
}

function externalLinks()
{
	if (!document.getElementsByTagName) return;

	var anchors = document.getElementsByTagName("a");
	for (var i=0; i<anchors.length; i++)
	{
		var anchor = anchors[i];

		if (anchor.getAttribute("href") &&
			anchor.getAttribute("rel") == "external")
		{
			anchor.target = "_blank";
		}
	 }
}



function showOverlay(width, height, content, invite)
{
	var overlay = $("overlay");
	var overlayBody = $("overlay_body");
	var overlayContent = $("overlay_content");
	overlayBody.style.width = width + "px";
	overlayBody.style.height = height + "px";
	overlayContent.innerHTML = content;

	var xleft = (screen.availWidth - width)/4;

	$("overlay_body").setStyle({'left':xleft+'px'});
	$("overlay_body").setStyle({'top':'20px'});


	if(invite){
		xleft = (screen.availWidth - width)/4;
		xleft += 180;
		$("overlay_body").setStyle({'left':xleft+'px'});
		$("overlay_body").setStyle({'top':'320px'});
	}

	//if (overlay.style.display == "")
	//	return;

	var backdrop = $("backdrop");
	if ($("backdrop")){
		Effect.Fade("backdrop", {from:1, to:0.2, duration:0.2});
		var divs = $$('#backdrop a');
		for( var i=0; i<divs.length; i++){
			Effect.Fade(divs[i], {from:1, to:0.2, duration:0.2} );
		}
	}
	overlay.style.display = "";
}

function showOverlayMid(width, height, content, invite)
{
	var overlay = $("overlay");
	var overlayBody = $("overlay_body");
	var overlayContent = $("overlay_content");
	overlayBody.style.width = width + "px";
	overlayBody.style.height = height + "px";
	overlayContent.innerHTML = content;

	var xleft = (screen.availWidth - width)/4;

	$("overlay_body").setStyle({'left':xleft+'px'});
	$("overlay_body").setStyle({'top':'20px'});


	if(invite){
		xleft = (screen.availWidth - width)/4;
		xleft += 180;
		$("overlay_body").setStyle({'left':xleft+'px'});
		$("overlay_body").setStyle({'top':'520px'});
	}

	//if (overlay.style.display == "")
	//	return;

	var backdrop = $("backdrop");
	if ($("backdrop")){
		Effect.Fade("backdrop", {from:1, to:0.2, duration:0.2});
		var divs = $$('#backdrop a');
		for( var i=0; i<divs.length; i++){
			Effect.Fade(divs[i], {from:1, to:0.2, duration:0.2} );
		}
	}
	overlay.style.display = "";
}

function hideOverlay()
{
	var overlay = $("overlay");
	var overlayBody = $("overlay_body");
	var overlayContent = $("overlay_content");

	overlayBody.style.width = "100px";
//	overlayBody.style.height = "100px";
	overlayContent.innerHTML = "";

	if (overlay.style.display == "none")
		return;

	overlay.style.display = "none";
//	Element.setOpacity("backdrop", "1");
	if( document.getElementById('backdrop')){
		Effect.Appear("backdrop", {duration:0.2});
		var divs = $$('#backdrop a');
		for( var i=0; i<divs.length; i++){
			Effect.Appear(divs[i], {duration:0.2});
		}
	}
	if( document.getElementById('home') ){
		if( $('home').getStyle('top')=='-259px' )
			$('home').setStyle({top:'-15px'});
	}
}

function showElement(element)
{
		$(element).style.display = "";
}

function hideElement(element)
{
		$(element).style.display = "none";
}

window.onload = externalLinks;