/////////////////////////////////////////////////////////////////////////////////////////////
// GENERADOR DE MENUS ///////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////////////////////

//Detección del Navegador
var isDOM = (document.getElementById ? true : false); 	//Versión 5 o superior
var isIE4 = ((document.all && !isDOM) ? true : false);	//IE 4
var isNS4 = (document.layers ? true : false);		//NS 4

//Variables Globales
var popTimer = 0;	//Temporizador
var litNow = new Array();

//Función que devuelve el método para referirnos a un elemento
function getRef(id)
{
	if (isDOM) return document.getElementById(id);
	if (isIE4) return document.all[id];
	if (isNS4) return document.layers[id];
}

//Función que devuelve el método para referirnos al estilo de un elemento
function getSty(id)
{
	return (isNS4 ? getRef(id) : getRef(id).style);
}

//Método constructor del objeto menú
function Menu(isVert, popInd, x, y, width, overCol, backCol, borderClass, textClass)
{
	this.isVert = isVert;		// True o False Según sea vertical u horizontal
	this.popInd = popInd		// Marca que se asocia al Item del menú para indicar que tiene asociado un submenu
	this.x = x;			// Posición y Tamaño
	this.y = y;			// Posición y Tamaño
	this.width = width;		// Posición y Tamaño
	this.overCol = overCol;		// Color del item cuando está seleccionado
	this.backCol = backCol;		// Color del item cuando no está seleccionado
	this.borderClass = borderClass;	// Estilo usado para los bordes
	this.textClass = textClass;	// Estilo usado para el texto
	this.parentMenu = null;		// Menú padre
	this.parentItem = null;		// Item padre
	this.ref = null;		// Referencia a la hoja de estilos.
}

//Método constructor del objeto Item
function Item(text, href, frame, length, spacing, target)
{
	this.text = text;		// Texto
	this.href = href;		// Dirección del hipervínculo
	this.frame = frame;		// Marco donde abrir el hipervínculo
	this.length = length;		// Longitud del elemento
	this.spacing = spacing;		// Espacio entre el elemento y el siguiente
	this.target = target;		// Número de menú a desplegar
	this.ref = null;		// Referencia a la hoja de estilos
}

function popOver(menuNum, itemNum)
{
	clearTimeout(popTimer);
	hideAllBut(menuNum);
	litNow = getTree(menuNum, itemNum);
	changeCol(litNow, true);
	targetNum = menu[menuNum][itemNum].target;
	if (targetNum > 0)
	{
		thisX = parseInt(menu[menuNum][0].ref.left) + parseInt(menu[menuNum][itemNum].ref.left);
		thisY = parseInt(menu[menuNum][0].ref.top) + parseInt(menu[menuNum][itemNum].ref.top);
		with (menu[targetNum][0].ref)
		{
			left = parseInt(thisX + menu[targetNum][0].x);
			top = parseInt(thisY + menu[targetNum][0].y);
			visibility = 'visible';
		}
	}
}

function popOut(menuNum, itemNum)
{
	if ((menuNum == 0) && !menu[menuNum][itemNum].target)
		hideAllBut(0)
	else
		popTimer = setTimeout('hideAllBut(0)', 500);
}

function getTree(menuNum, itemNum)
{
	itemArray = new Array(menu.length);
	while(1)
	{
		itemArray[menuNum] = itemNum;
		if (menuNum == 0) return itemArray;
		itemNum = menu[menuNum][0].parentItem;
		menuNum = menu[menuNum][0].parentMenu;
	}
}

function changeCol(changeArray, isOver)
{
	for (menuCount = 0; menuCount < changeArray.length; menuCount++)
		{
		if (changeArray[menuCount])
			{
			newCol = isOver ? menu[menuCount][0].overCol : menu[menuCount][0].backCol;
			with (menu[menuCount][changeArray[menuCount]].ref)
				{
				if (isNS4) bgColor = newCol;
				else backgroundColor = newCol;
				}
			}
		}
}

function hideAllBut(menuNum)
{
	var keepMenus = getTree(menuNum, 1);
	for (count = 0; count < menu.length; count++)
		if (!keepMenus[count])
			menu[count][0].ref.visibility = 'hidden';
			changeCol(litNow, false);
}

function writeMenus()
{
	if (!isDOM && !isIE4 && !isNS4) return;
	for (currMenu = 0; currMenu < menu.length; currMenu++) with (menu[currMenu][0])
	{
		// Variable for holding HTML for items and positions of next item.
		var str = '', itemX = 0, itemY = 0;
			// Remember, items start from 1 in the array (0 is menu object itself, above).
			// Also use properties of each item nested in the other with() for construction.
			for (currItem = 1; currItem < menu[currMenu].length; currItem++) with (menu[currMenu][currItem]) 
			{
				var itemID = 'menu' + currMenu + 'item' + currItem;
				// The width and height of the menu item - dependent on orientation!
				var w = (isVert ? 250 : length);
				var h = (isVert ? length : width);
				// Create a div or layer text string with appropriate styles/properties.
				// Thanks to Paul Maden (www.paulmaden.com) for helping debug this in IE4, apparently
				// the width must be a miniumum of 3 for it to work in that browser.
				if (isDOM || isIE4)
				{
					str += '<div id="' + itemID + '" style="position: absolute; left: ' + itemX + '; top: ' + itemY + '; width: ' + w + '; height: ' + h + '; visibility: inherit; ';
					if (backCol) str += 'background: ' + backCol + '; ';
					str += '" ';
				}
				if (isNS4)
				{
					str += '<layer id="' + itemID + '" left="' + itemX + '" top="' + itemY + '" width="' +  w + '" height="' + h + '" visibility="inherit" ';
					if (backCol) str += 'bgcolor="' + backCol + '" ';
				}
				if (borderClass) str += 'class="' + borderClass + '" ';
				// Add mouseover handlers and finish div/layer.
				str += 'onMouseOver="popOver(' + currMenu + ',' + currItem + ')" onMouseOut="popOut(' + currMenu + ',' + currItem + ')">';
				// Add contents of item (default: table with link inside).
				// In IE/NS6+, add padding if there's a border to emulate NS4's layer padding.
				// If a target frame is specified, also add that to the <a> tag.
				str += '<table width="' + (w - 8) + '" border="0" cellspacing="0" cellpadding="' + (!isNS4 && borderClass ? 3 : 0) + '">
<tr>
<td align="left" height="' + (h - 7) + '">' + '<a class="' + textClass + '" href="' + href + '"' + (frame ? ' target="' + frame + '">' : '>') + text + '</a>
</td>';
				if (target > 0)
				{
					// Set target's parents to this menu item.
					menu[target][0].parentMenu = currMenu;
					menu[target][0].parentItem = currItem;
					// Add a popout indicator.
					if (popInd) str += '<td class="' + textClass + '" align="right">' + popInd + '</td>';
				}
				str += '</tr>
</table>' + (isNS4 ? '</layer>' : '</div>');
				if (isVert) itemY += length + spacing;
				else itemX += length + spacing;
			}
			if (isDOM)
			{
				var newDiv = document.createElement('div');
				document.getElementsByTagName('body').item(0).appendChild(newDiv);
				newDiv.innerHTML = str;
				ref = newDiv.style;
				ref.position = 'absolute';
				ref.visibility = 'hidden';
			}
			// Insert a div tag to the end of the BODY with menu HTML in place for IE4.
			if (isIE4)
			{
				document.body.insertAdjacentHTML('beforeEnd', '<div id="menu' + currMenu + 'div" ' + 'style="position: absolute; visibility: hidden">' + str + '</div>');
				ref = getSty('menu' + currMenu + 'div');
			}
			// In NS4, create a reference to a new layer and write the items to it.
			if (isNS4)
			{
				ref = new Layer(0);
				ref.document.write(str);
				ref.document.close();
			}
			for (currItem = 1; currItem < menu[currMenu].length; currItem++)
			{
				itemName = 'menu' + currMenu + 'item' + currItem;
				if (isDOM || isIE4) menu[currMenu][currItem].ref = getSty(itemName);
				if (isNS4) menu[currMenu][currItem].ref = ref.document[itemName];
			}
		}
		with(menu[0][0])
		{
			ref.left = x;
			ref.top = y;
			ref.visibility = 'visible';
		}
	}

// Syntaxes: *** START EDITING HERE, READ THIS SECTION CAREFULLY! ***
//
// menu[menuNumber][0] = new Menu(Vertical menu? (true/false), 'popout indicator', left, top,
// width, 'mouseover colour', 'background colour', 'border stylesheet', 'text stylesheet');
//
// Left and Top are measured on-the-fly relative to the top-left corner of its trigger, or
// for the root menu, the top-left corner of the page.
//
// menu[menuNumber][itemNumber] = new Item('Text', 'URL', 'target frame', length of menu item,
//  additional spacing to next menu item, number of target menu to popout);
//
// If no target menu (popout) is desired, set it to 0. Likewise, if your site does not use
// frames, pass an empty string as a frame target.
//
// Something that needs explaining - the Vertical Menu setup. You can see most menus below
// are 'true', that is they are vertical, except for the first root menu. The 'length' and
// 'width' of an item depends on its orientation -- length is how long the item runs for in
// the direction of the menu, and width is the lateral dimension of the menu. Just look at
// the examples and tweak the numbers, they'll make sense eventually :).

var menu = new Array();

// Default colours passed to most menu constructors (just passed to functions, not
// a global variable - makes things easier to change later in bulk).
var defOver = '#336699', defBack = '#003366';

// Default 'length' of menu items - item height if menu is vertical, width if horizontal.
var defLength = 22;

//Menú Principal
menu[0] = new Array();
menu[0][0] = new Menu(false, '', 5, 0, 17, '#666600', '#006666', '', 'itemText2');
menu[0][1] = new Item('Generalidades', '#', '', 120, 10, 6);
menu[0][2] = new Item('Modelo de datos', '#', '', 120, 10, 1);
menu[0][3] = new Item('Modelo relacional', '#', '', 120, 10, 2);
menu[0][4] = new Item('El modelo E/R', '#', '', 120, 10, 3);
menu[0][5] = new Item('SQL', '#', '', 120, 10, 4);

// Menú Modelo de Datos
menu[1] = new Array();
menu[1][0] = new Menu(true, '>', 0, 22, 80, defOver, defBack, 'itemBorder', 'itemText');
menu[1][1] = new Item('Introducción', 'moddat001.htm', '', defLength, 0, 0);
menu[1][2] = new Item('Los Usuarios', 'moddat002.htm', '', defLength, 0, 0);
menu[1][3] = new Item('Ciclo de Vida', 'moddat003.htm', '', defLength, 0, 0);
menu[1][4] = new Item('Criterios de Calidad', 'moddat004.htm', '', defLength, 0, 0);
menu[1][5] = new Item('Indicadores de Calidad', 'moddat005.htm', '', defLength, 0, 0);
menu[1][6] = new Item('El modelo lógico', 'moddat006.htm', '', defLength, 0, 0);
menu[1][7] = new Item('Restricciones de Integridad', 'moddat007.htm', '', defLength, 0, 0);

// Menú Modelo Relacional
menu[2] = new Array();
menu[2][0] = new Menu(true, '>', 0, 22, 80, defOver, defBack, 'itemBorder', 'itemText');
menu[2][1] = new Item('Introducción', 'modrel001.htm', '', defLength, 0, 0);
menu[2][2] = new Item('Proceso de Normalización', 'modrel002.htm', '', defLength, 0, 0);
menu[2][3] = new Item('Las Interrelaciones', 'modrel003.htm', '', defLength, 0, 0);
menu[2][4] = new Item('Algebra Relacional', 'modrel004.htm', '', defLength, 0, 0);
menu[2][5] = new Item('Cálculo Relacional', 'modrel005.htm', '', defLength, 0, 0);

// Menú Modelo E/R
menu[3] = new Array();
menu[3][0] = new Menu(true, '<', 0, 22, 80, defOver, defBack, 'itemBorder', 'itemText');
menu[3][1] = new Item('Entidades', 'mer001.htm', '', defLength, 0, 0);
menu[3][2] = new Item('Atributos', 'mer002.htm', '', defLength, 0, 0);
menu[3][3] = new Item('Dominios', 'mer003.htm', '', defLength, 0, 0);
menu[3][4] = new Item('Claves', 'mer004.htm', '', defLength, 0, 0);
menu[3][5] = new Item('Interrelaciones', 'mer005.htm', '', defLength, 0, 0);
menu[3][6] = new Item('Restricciones en las Interrelaciones', 'mer006.htm', '', defLength, 0, 0);
menu[3][7] = new Item('Ejemplo', 'mer007.htm', '', defLength, 0, 0);

// Menú SQL.
menu[4] = new Array();
menu[4][0] = new Menu(true, '>', 0, 22, 80, defOver, defBack, 'itemBorder', 'itemText');
menu[4][1] = new Item('Introducción', 'sql001.htm', '', defLength, 0, 0);
menu[4][2] = new Item('Consultas', '>', '', defLength, 0, 5);
menu[4][3] = new Item('Criterios de Selección', 'sql003.htm', '', defLength, 0, 0);
menu[4][4] = new Item('Agrupamiento de Registros', 'sql004.htm', '', defLength, 0, 0);
menu[4][5] = new Item('Tipos de Datos', 'sql006.htm', '', defLength, 0, 0);
menu[4][6] = new Item('Subconsultas', 'sql007.htm', '', defLength, 0, 0);
menu[4][7] = new Item('Extructuras de las Tablas', 'sql010.htm', '', defLength, 0, 0);
menu[4][8] = new Item('Problemas Resueltos', '>', '', defLength, 0, 9);
menu[4][9] = new Item('Cursores', 'sql011.htm', '', defLength, 0, 0);
menu[4][10] = new Item('FullText (SQL-Server)', 'sql013.htm', '', defLength, 0, 0);
menu[4][11] = new Item('ACCESS', '>', '', defLength, 0, 8);
menu[4][12] = new Item('Optimizar Sentencias', 'sql000.htm', '', defLength, 0, 0);

//SubMenu de Consultas
menu[5] = new Array();
menu[5][0] = new Menu(true, '>', 100, 0, 30, '#333366', '#666699', 'crazyBorder', 'crazyText');
menu[5][1] = new Item('De Selección', 'sql002.htm', '', defLength, 0, 0);
menu[5][2] = new Item('De Acción', 'sql005.htm', '', defLength, 0, 0);
menu[5][3] = new Item('De Unión Internas', 'sql008.htm', '', defLength, 0, 0);
menu[5][4] = new Item('De Unión Externas', 'sql009.htm', '', defLength, 0, 0);
menu[5][5] = new Item('De Referencias Cruzadas', 'sql012.htm', '', defLength, 0, 0);

//SubMenu de Generalidades
menu[6] = new Array();
menu[6][0] = new Menu(true, '>', 0, 22, 80, defOver, defBack, 'itemBorder', 'itemText');
menu[6][1] = new Item('Definiciones', 'gen003.htm', '', defLength, 0, 0);
menu[6][2] = new Item('Leyes de Muphy', 'gen004.htm', '', defLength, 0, 0);
menu[6][3] = new Item('Arquitecturas', 'gen001.htm', '', defLength, 0, 0);
menu[6][4] = new Item('Buffers', 'gen002.htm', '', defLength, 0, 0);
menu[6][5] = new Item('Data WareHousing', '>', '', defLength, 0, 7);

//SubMenu de Data WareHousing
menu[7] = new Array();
menu[7][0] = new Menu(true, '>', 180, 0, 30, '#333366', '#666699', 'crazyBorder', 'crazyText');
menu[7][1] = new Item('Introducción', 'gen005.htm', '', defLength, 0, 0);
menu[7][2] = new Item('Teoría', 'gen006.htm', '', defLength, 0, 0);
menu[7][3] = new Item('Proyecto', 'gen007.htm', '', defLength, 0, 0);

//SubMenu de ACCESS
menu[8] = new Array();
menu[8][0] = new Menu(true, '>', 100, 0, 30, '#333366', '#666699', 'crazyBorder', 'crazyText');
menu[8][1] = new Item('Bases Externas', 'sql014.htm', '', defLength, 0, 0);
menu[8][2] = new Item('Parámetros', 'sql015.htm', '', defLength, 0, 0);
menu[8][3] = new Item('Omitir Permisos', 'sql016.htm', '', defLength, 0, 0);
menu[8][4] = new Item('Cláusula PROCEDURE', 'sql017.htm', '', defLength, 0, 0);

//SubMenu de Problemas Resueltos
menu[9] = new Array();
menu[9][0] = new Menu(true, '>', 100, 0, 30, '#333366', '#666699', 'crazyBorder', 'crazyText');
menu[9][1] = new Item('Registros Duplicados', 'sql018.htm', '', defLength, 0, 0);
menu[9][2] = new Item('Registros no Relaccionados', 'sql019.htm', '', defLength, 0, 0);


var popOldWidth = window.innerWidth;
nsResizeHandler = new Function('if (popOldWidth != window.innerWidth) location.reload()');

if (isNS4) document.captureEvents(Event.CLICK);
document.onclick = clickHandle;

function clickHandle(evt)
{
 if (isNS4) document.routeEvent(evt);
 hideAllBut(0);
}


// This is just the moving command for the example.

function moveRoot()
{
 with(menu[0][0].ref) left = ((parseInt(left) < 100) ? 100 : 5);
}
//  End -->