/*
//____________________________________________________________________
// <module
//		name		= "BMEJS"
//		src			= "bmejs.php"
//		language	= "JavaScript"
//		purpose	 	= "BME CMS JavaScript utilities"
//		copyright	= "Copyright (c) 2001-2013 by Manfred Baumeister, Dublin"
//		author		= "Manfred Baumeister" authorid = "mb"
//		/>
// <audit>
// <ecn_author = "mb" date = "2011/03/24" note = "Second (radix) parameter added to parseInt calls (for Google Closure / Advanced compilation compliance)" />
// <ecn_author = "mb" date = "2008/05/10" note = "bmeDOM_StyleDisplay function modified to support uninitalyzed display style settings" />
// <ecn_author = "mb" date = "2008/03/17" note = "bmeEvent_WindowOnload function for multiple window.onload event handler registrations added" />
// <ecn author = "mb" date = "2008/02/07" note = "bmeDOM_get/setClassName functions added" />
// <ecn author = "mb" date = "2006/05/27" note = "bmeDOM_ShowOneOfRange function added" />
// <ecn author = "mb" date = "2005/05/30" note = "bmeDOM_ShowOneOf function added" />
// <ecn author = "mb" date = "2002/05/04" note = "DHTML methods added to bmeDomObject" />
// <ecn author = "mb" date = "2001/10/18" note = "Original coding" />
// </audit>
// <functions>
// <function name = "bmeDOM_getObject"		purpose	= "Get DOM object by id" />
// <function name = "bmeDOM_getObjectStyle"	purpose	= "Get DOM object by id with or without style" />
// <function name = "bmeDOM_getClassName"	purpose	= "Get DOM object class name by object id" />
// <function name = "bmeDOM_setClassName"	purpose	= "Set DOM object class name" />
// <function name = "bmeDOM_StyleDisplay"	purpose	= "Set DOM object display style" />
// <function name = "bmeDOM_Hide"			purpose	= "Hide DOM object (set DOM object display style to 'none')" />
// <function name = "bmeDOM_Show"			purpose	= "Show DOM object (set DOM object display style to 'block')" />
// <function name = "bmeDOM_ShowOneOf"		purpose = "Show one of a set of DOM objects" />
// <function name = "bmeDOM_ShowOneOfRange"	purpose = "Show one of a set range of DOM objects" />
// <function name = "bmeEvent_WindowOnload"	purpose = "Add function / event handler to window.onload" />
// <function name = "bmeMenu_Activate"		purpose = "Activate hierarchical BME menu" />
// </functions>
// </module>
//____________________________________________________________________
*/

//____________________________________________________________________
// Globals

var bmeDOM_isAccessible	= 0;
var bmeDOM_isMSIE		= 0;
var bmeDOM_isNetscape	= 0;
var bmeDOM_isStandard	= document.getElementById;
if (bmeDOM_isStandard)
{
//	alert('bmeDOM_isstandard, bmeDOM_isaccessible');
	bmeDOM_isAccessible = 1;
}
else
{
	bmeDOM_isMSIE = document.all;
	if (bmeDOM_isMSIE)
	{
		bmeDOM_isAccessible = 1;
	}
	else
	{
		bmeDOM_isNetscape =
			navigator.appName.indexOf('Netscape') != -1
			&& (parseInt(navigator.appVersion, 10) == 4)
			;
	}
    if (bmeDOM_isNetscape)
    {
    	bmeDOM_isAccessible = 1;
    }
}

//____________________________________________________________________
// Object access

function bmeDOM_getObjectStyle(objectid, withstyle)
{
	// Get Document Object Model object with or without style
	if (bmeDOM_isStandard)
	{
		// Standard DOM
		return withstyle
			? document.getElementById(objectid).style
			: document.getElementById(objectid)
			;
	}
	if (bmeDOM_isMSIE)
	{
		// MSIE-specific DOM
		return withstyle
			? document.all[objectid].style
			: document.all[objectid]
			;
	}
	if (bmeDOM_isNetscape
	 && document.layers
	 && document.layers[objectid]
	 )
	{
		// Netscape-specific DOM
		return document.layers[objectid];
	}
	// Object/style not found or not accessible
//	alert('[bmeDOM_getObjectStyle] WARNING 1 (' + objectid + ')');
	return null;
}

function bmeDOM_getObject(objectid)
{
	// Get Document Object Model object
	return bmeDOM_getObjectStyle(objectid, 0);
}

//____________________________________________________________________
// Object class queries/settings

function bmeDOM_getClassName(objectid)
{
	// Get DOM object
	var obj = bmeDOM_getObject(objectid);
	// Return empty string if no DOM object
	return obj == null ? '' : obj.className;
}

function bmeDOM_setClassName(objectid, classname, replace)
{
	// Get DOM object
	var obj = bmeDOM_getObject(objectid);
	//
	if (obj)
	{
		if (replace != null && replace)
		{
			obj.className = obj.className.replace(replace, classname);
		}
		else
		{
			obj.className = classname;
		}
	}
}

//____________________________________________________________________
// Object style queries/settings

function bmeDOM_StyleDisplay(objectid, displaymode)
{
	// Get DOM object
	var obj = bmeDOM_getObject(objectid);
	// Abort if no DOM object
	if (obj == null)
	{
//		alert('[bmeDOM_StyleDisplay('+ objectid + ', ' + displaymode + ')] ERROR 1');
		return;
	}
	// Check if DOM object style accessible
	if (obj.style)
	{
		// Get current display style
		var currentdisplay = obj.style.display ? obj.style.display : 'none';
		// Evaluate new display mode
		switch (displaymode)
		{
		case 'toggle' :
			// Toggle display/visibility request (none <-> block)
			switch (currentdisplay)
			{
			case 'none' :
				// Show (as block!)
				obj.style.display = 'block';
				break;
			case 'block' :
			case 'inline' :
			default :
				// Hide
				obj.style.display = 'none';
				break;
			}
			break;
		case 'none' :
		case 'block' :
		case 'inline' :
		default :
			// Set specified display mode
			obj.style.display = displaymode;
			break;
		}
	}
	else
	{
		// Error - object style not accessible 
//		alert('[bmeDOM_StyleDisplay('+ objectid + ', ' + displaymode + ')] ERROR 2 ' + obj.style.display);
	}
}

function bmeDOM_Show(objectid)	{ bmeDOM_StyleDisplay(objectid, 'block'); }
function bmeDOM_Hide(objectid)	{ bmeDOM_StyleDisplay(objectid, 'none'); }

function bmeDOM_ShowOneOf(objectid, x, n)
{
	for (i = 0; i < n; i++)
	{
		bmeDOM_Hide(objectid + i);
	}
	bmeDOM_Show(objectid + x);
}

function bmeDOM_ShowOneOfRange(objectid, x, ns, ne)
{
	for (i = ns; i <= ne; i++)
	{
		bmeDOM_Hide(objectid + i);
	}
	bmeDOM_Show(objectid + x);
}

//____________________________________________________________________
// BME event management

function bmeEvent_WindowOnload(
	newfct		// New function to be assigned to window.onload
	)
{
	// Check if function already assigned to window.onload
	if (typeof window.onload == 'function')
	{
		// Get current window.onload function/assignment
		var curfct = window.onload;
		// Function already assigned to window.onload
		// Create/assign new function to window onload
		window.onload = function()
			{
				// Execute existing function
				if (curfct)
				{
					curfct();
				}
				// Execute new function
				newfct();
			}
	}
	else
	{
		// No function assigned to window.onload
		// Assign new function to window.onload
		window.onload = newfct;
	}
}

//____________________________________________________________________
// BME menu management

function bmeMenu_Activate(elemId)
{
	if (document.all && document.getElementById)
	{
		if (document.getElementById(elemId))
		{
			// Get menu by id
			var menuroot = document.getElementById(elemId);
			// Get/iterate menu LI tags
			var li_list = menuroot.getElementsByTagName("LI");
			for (i = 0; i < li_list.length; i++)
			{
				// Iterate LI tag UL tags
				if (li_list[i].getElementsByTagName("UL").length > 0)
				{
					// Display as block on mouse over event
					li_list[i].onmouseover = function()
						{
							this.getElementsByTagName("UL")[0].style.display = 'block';
						}
					// Display deactivate on mouse out event
					li_list[i].onmouseout = function()
						{
							this.getElementsByTagName("UL")[0].style.display = 'none';
						}
				}
/*
				// Iterate LI tag UL tags
				for (j = 0; j < li_list[i].getElementsByTagName("UL").length; j++)
				{
					// Display as block on mouse over event
					li_list[i].onmouseover = function()
						{
							this.getElementsByTagName("UL")[j].style.display = 'block';
						}
					// Display deactivate on mouse out event
					li_list[i].onmouseout = function()
						{
							this.getElementsByTagName("UL")[j].style.display = 'none';
						}
				}
*/
			}
		}
	}
}

//____________________________________________________________________
// BME CSS

// Override/prepare inactive bme_tabcontainer0
//document.write('<style type="text/css"> .bme_tabcontainer0 { display:none; } </style>');

//____________________________________________________________________
// JavaScript code end