/*****************  GLOBAL VARIABLES :  ******************/
var timeID;	// used by Timer functions

// <const> is not recognized in this version of JavaScript (thus <var> is improperly used instead)... -->
var timerdelay1 = 300;		// Timer interval
var timerdelay2 = 300;		// Timer interval (can be shorter, but it is not necessary)
// ***** If some of the following values has been changed in the related .css file,
// ***** it has to be consequently changed here, too !! :
var normbar = "barItem";		// base class' name of a main bar item
var hilibar = "barItemOver";		// class' name of a highlighted main bar item
var normenu = "menuItem";		// base class' name of a menu item
var hilimenu = "menuItemOver";		// class' name of a highlighted menu item
/************  END OF GLOBAL VARIABLES  *************/

function HideMenu( obj ) {
    	//if ( !obj.hasChildNodes() ) {  return; }	...a menu without children???
         	
	var child = obj.children;
	var lg = child.length;
		
	var menu;
	for ( var j = 0; j < lg; ++j ) {
		menu = eval( child[ j ].menu );
		if ( menu == null ) { continue; }
                    		
		menu.style.visibility = "hidden";
		HideMenu( menu );
   	}
} /*///////////////// END FUNCTION /////////////////*/

function stopnow() {
	clearInterval( timeID );
} /*///////////////// END FUNCTION /////////////////*/

function restore( obj, objclass ) {
// called by "fc()" function only
	stopnow();
	
	var child = obj.children;
	var lg = child.length;
	for ( var i = 0; i < lg; ++i ) {
		if ( child[i].className != objclass  ) { child[i].className = objclass; }
	}
	
	HideMenu( obj );
} /*///////////////// END FUNCTION /////////////////*/

function fc() {
// called by "clean( delay )" function only
// created because the function argument of "setInterval(...)" cannot contain any own parameter
	restore( menuBar, normbar );
} /*///////////////// END FUNCTION /////////////////*/

function clean( delay ) {
		timeID = setInterval( "fc()", delay );
} /*///////////////// END FUNCTION /////////////////*/

function Do( obj ) {
    		var o = eval( obj );
    		window.navigate( o.cmd );
} /*///////////////// END FUNCTION /////////////////*/

function unselect( obj, classname ) {
	var menu = eval( obj );
	var child = menu.children;
	var lg = child.length;
	
	var item;
	for ( var j = 0; j < lg; ++j ) {
		item = eval( child[ j ] );
		item.className = classname;
		if ( item.menu != null ) { unselect( item.menu, classname ); }
     }
} /*///////////////// END FUNCTION /////////////////*/

function unselectall( obj, classname ) {
	var child = obj.parentElement.children;
	var lg = child.length;
	for ( var i = 0; i < lg; ++i ) {
		if ( child[i].className != normbar  && child[i].id != obj.id ) { child[i].className = normbar; }
	}

	if ( obj.menu != null ) { unselect( obj.menu, classname ); }
} /*///////////////// END FUNCTION /////////////////*/

function ShowMenu( obj, classname, ismainbar ) {
	HideMenu( obj.parentElement );
    	obj.className = classname;
    	if ( obj.menu == null ) { return; }

    	var menu = eval( obj.menu );
    	menu.style.visibility = "visible";

	if ( ismainbar ) {	
		menu.style.pixelTop =  obj.getBoundingClientRect().top + obj.offsetHeight - 1 + Bdy.scrollTop;
		menu.style.pixelLeft = obj.getBoundingClientRect().left - 2 + Bdy.scrollLeft;
	} else {
			menu.style.pixelTop =  obj.getBoundingClientRect().top - 2 + Bdy.scrollTop;
    			menu.style.pixelLeft = obj.getBoundingClientRect().right - 1 + Bdy.scrollLeft;
    			if ( menu.getBoundingClientRect().right >= Bdy.offsetWidth ) {
    			//if ( menu.getBoundingClientRect().right > window.screen.availWidth ) {
				menu.style.pixelLeft = obj.getBoundingClientRect().left - menu.offsetWidth;
			}
	}
} /*///////////////// END FUNCTION /////////////////*/

function ShowMain( obj, hiliclass, basemenuclass ) {
	stopnow();
	unselectall( obj, basemenuclass );
	ShowMenu( obj, hiliclass, true );
} /*///////////////// END FUNCTION /////////////////*/

function ShowSub( obj, item, hiliclass, basemenuclass ) {
	stopnow();
	unselect( obj, basemenuclass );
	ShowMenu( item, hiliclass, false );
} /*///////////////// END FUNCTION /////////////////*/

function FindSubMenu( subMenu ) {
	var menu = eval( subMenu );
		
	menu.style.visibility = "hidden";
		
	var Items = menu.children;
	var lg = Items.length;
		
	var menuItem;
	for ( var j =0; j < lg; ++j ) {
		menuItem = eval( Items[ j ] );
              
		if ( menuItem.menu != null ) {
			menuItem.innerHTML += "<Span Id=" + menuItem.id + "_Arrow class='Arrow'>4</Span>";
			FindSubMenu( menuItem.menu );
		}

		if ( menuItem.cmd != null ) {
			menuItem.onclick = new Function( "Do(" + menuItem.id + ")" );
		} else {
			menuItem.style.cursor = "default";
		}
		menuItem.onmouseover = new Function( "ShowSub(" + menu.id + "," + menuItem.id + ",'" + hilimenu + "','" + normenu + "')" );
		menuItem.onmouseout = new Function( "clean(" + timerdelay1 + ")" );
	} 
} /*///////////////// END FUNCTION /////////////////*/

function initCascadMenu( obj ) {
// Called by onLoad event of <BODY ...> tag in the HTML file
    	var bar = obj.children;
    	var lg = bar.length
     	
    	var barItem;
    	for ( var i = 0; i < lg; ++i ) {
		barItem = eval( bar[ i ] );
     			
		if ( barItem.cmd != null ) {
			barItem.onclick = new Function( "Do(" + barItem.id + ")" );
		} else {
			barItem.style.cursor = "default";
		}
    		barItem.onmouseover = new Function( "ShowMain(" + barItem.id + ",'" + hilibar + "','" + normenu + "')" );
    		barItem.onmouseout = new Function( "clean(" + timerdelay2 + ")" );
          		
    		if ( barItem.menu != null ) { FindSubMenu( barItem.menu ); }
    	} 
} /*///////////////// END FUNCTION /////////////////*/