/*
General client side functions for the CMS
*/



//=== Browser Identifier variables
var isOpera = navigator.userAgent.indexOf("Opera") > -1; 
var isIE = (navigator.userAgent.indexOf("MSIE") > 1 && !isOpera); 
var isMoz = (navigator.userAgent.indexOf("Mozilla/5.") == 0 && !isOpera);



/* 
Antispam e-mail link
*/
function CMS_GetEmailLink(sUser, sDomain, sATagAttributes, sLinkText, sSubject, sTitle)
{
	if (sLinkText == null) sLinkText = sUser + "@" + sDomain;
	if (sSubject == null) sSubject = "E-mail from '" + sDomain + "'";
	if (sTitle == null) sTitle = "Send e-mail";
	
	sSubject = sSubject.replace (/ /g, " ")
	sSubject = sSubject.replace (/"/g, """)

	document.write("<a href=\"mailto:" + sUser + "@" + sDomain + "?Subject=" + sSubject + "\" " +
		sATagAttributes + " title=\"" + sTitle + "\" >" +
		sLinkText + "</a>");
}



/*
Open new window and insert some html code into
*/
function CMS_OpenInNewWindow (psURL, piWidth, piHeight, psInsertHtml)
{
	document.body.ShowMainImage_Params = psInsertHtml;
	var $windowName = "";
	if (piHeight > screen.height) piHeight = screen.height - 50;
	if (piWidth > screen.width) piWidth = screen.width - 50;

	window.open (psURL, $windowName, 
		"scrollbars=yes,status=no,location=no,menubar=no,resizable=yes,toolbar=no,dependent=no,dialog=yes,minimizable=no,alwaysRaised=no, top=" + (screen.height - piHeight) / 2 + ", left=" + (screen.width - piWidth) / 2 +
		", width=" + piWidth + ", height=" + piHeight);
};


function CMS_IsStringEmpty(str)
{
	if (str == null || str == "") return true;
	return false;
}



function CMS_IfNull(str, value)
{
	if (str == null && value == null) return "";
	if (str == null) return value;
	return str;
}



function CMS_IfEmpty(str, value)
{
	if (al_IsStringEmpty(str) && al_IsStringEmpty(value)) return "";
	if (al_IsStringEmpty(str)) return value;
	return str;
}



function CMS_GetKeyCode(evt)
{
	if(isMoz)
		return evt.charCode;
	return evt.keyCode;
}



function CMS_CancelEvent(evt)
{
	evt.cancelBubble = true;
	evt.returnValue = false;
}



function CMS_StartText_Initialize(element)
{
	if (CMS_StartText_NeedSet(element))
	{
		element.value = element.getAttribute("startText");
		element.onfocus = function()
		{
			CMS_StartText_ClearElementValue(this);
		};
	}
}



function CMS_StartText_NeedSet(element)
{
	if (element.tagName != "INPUT" && element.tagName != "TEXTAREA")
		return false;
	
	if (element.tagName == "INPUT" && element.getAttribute("type") != "text" && element.getAttribute("type") != null)
		return false;
		
	if (element.getAttribute("startText") == null)
		return false;
		
	return true;
}



function CMS_StartText_ClearElementValue(element)
{
	if (element.getAttribute("cms_isCleared") != "1")
	{
		element.setAttribute("cms_isCleared", "1");
		element.value = '';
	}
}



// === Events

function CMS_addEvent($obj, $eventName, $function)
{
	if ($obj.attachEvent)
		$obj.attachEvent("on" + $eventName, $function);
	else if ($obj.addEventListener)
		$obj.addEventListener($eventName, $function, true);
}



function CMS_removeEvent($obj, $eventName, $function)
{
	if ($obj.detachEvent)
		$obj.detachEvent('on' + $eventName, $function);
	else if ($obj.removeEventListener)
		$obj.removeEventListener($eventName, $function, true);
}



function CMS_CancelEvent(evt)
{
	evt.cancelBubble = true;
	evt.returnValue = false;
}