// http://www.dustindiaz.com/top-ten-javascript/
// getCookie(), setCookie(), deleteCookie()

function getCookie( name ) {
	var start = document.cookie.indexOf( name + "=" );
	var len = start + name.length + 1;
	if ( ( !start ) && ( name != document.cookie.substring( 0, name.length ) ) ) {
		return null;
	}
	if ( start == -1 ) return null;
	var end = document.cookie.indexOf( ';', len );
	if ( end == -1 ) end = document.cookie.length;
	return unescape( document.cookie.substring( len, end ) );
}

function setCookie( name, value, expires, path, domain, secure ) {
	var today = new Date();
	today.setTime( today.getTime() );
	if ( expires ) {
		expires = expires * 1000 * 60 * 60 * 24;
	}
	var expires_date = new Date( today.getTime() + (expires) );
	document.cookie = name+'='+escape( value ) +
		( ( expires ) ? ';expires='+expires_date.toGMTString() : '' ) + //expires.toGMTString()
		( ( path ) ? ';path=' + path : '' ) +
		( ( domain ) ? ';domain=' + domain : '' ) +
		( ( secure ) ? ';secure' : '' );
}

function deleteCookie( name, path, domain ) {
	if ( getCookie( name ) ) document.cookie = name + '=' +
			( ( path ) ? ';path=' + path : '') +
			( ( domain ) ? ';domain=' + domain : '' ) +
			';expires=Thu, 01-Jan-1970 00:00:01 GMT';
}



// Tab Show/Hide Functions
// IMS-RC
	
function toggleTabs(tab){
	//alert("tab:" + tab);
	for (var i=0; i<Tabs.length; i++) {
		divTable = document.getElementById( Tabs[i] ); 
		liTab =  document.getElementById( "Li" + Tabs[i] ); 
	
		if ( Tabs[i] == tab ) {
				setCookie( "memorizedTab", tab, 1);
				divTable.style.display = "block";
				//liTab.style.color = "red"; 
				//alert(Tabs[i]);
				cssjs('add',liTab,'current')
		} else { 
				divTable.style.display = "none";
				cssjs('remove',liTab,'current')
		} //end if
	} // end  for
} 


function showAll() {
	setCookie( "memorizedTab", "TabShowAll", 1);
	for (var i=0; i<Tabs.length; i++) 	
		{
			divTable = document.getElementById( Tabs[i] ); 
			divTable.style.display = "block";
			
			liTab =  document.getElementById( "Li" + Tabs[i] ); 		
			cssjs('remove',liTab,'current')
		}
	
	showAllTab = document.getElementById( "LiTabShowAll" );
	cssjs('add', showAllTab, 'current')	
}



function initializer() {
	//alert(getCookie("memorizedTab"));

	// Esconde todos los divs (solo divs, los tabs se marcan seguidamente con toogleTabs)
	for (var i=0; i<Tabs.length; i++) {
		var divTable =	document.getElementById( Tabs[i] ); 
		if (divTable.style.display == "none") {
			divTable.style.display = "";
		} else {	
			divTable.style.display = "none";
		}
	}
	
	// Leer del Cookie el ultimo tab seleccionado, luego muestra/marca el tab/div acorde 
	// si el cookie es null, muestro y marca el primer div (0)
	var lastTab = getCookie("memorizedTab");
	if (lastTab) {	
		if (lastTab == "TabShowAll") {
			showAll();
		} else {		
			toggleTabs(lastTab);
		}
	} else { 
		toggleTabs(Tabs[0]);  // tab/div inicial para mostrar/marcar (indice contado desde 0)
	}
}

YAHOO.util.Event.addListener(window, "load", initializer); // window.onload = initializer; //