var timer;

function hide( obj ){
		var theObj = document.getElementById(obj);
		theObj.style.display = "none";

}

function show( obj ){
		var theObj = document.getElementById(obj);
		theObj.style.display = "block";
}

pauselength = 1000;


function init( sm ){

	currentSub = sm;
	show( sm );
}


function expandHelpMenu(){
	
	if( document.getElementById("helpmenu") ){
		//change the background image:
		obj = document.getElementById("helpmenu");
		obj.style.backgroundImage="url(images/nestednavover.gif)";
		
		
		obj = document.getElementById("helpmenulabel");
		obj.style.color = "#7c7c7c";
		
		window.clearTimeout(timer);
		//show( "expandHelpMenu");
	}
	
	if( document.getElementById("helpSubMenu") ){
		show( "helpSubMenu" );
	}
}

function closeHelpMenu(){
	
	if( document.getElementById("helpmenu") ){
		//change the background image:
		obj = document.getElementById("helpmenu");
		obj.style.backgroundImage="url(images/navoff.gif)";
		
		obj = document.getElementById("helpmenulabel");
		obj.style.color = "#333333";
		
	}
	
	if( document.getElementById("helpSubMenu") ){
		hide( "helpSubMenu" );
	}


	

}

function mout(){

	timer = setTimeout( "closeHelpMenu()", pauselength );


}


function sover(){
	
	//if the help menu is open, keep open, but change to grey
	if( document.getElementById("helpmenu") ){
		obj = document.getElementById("helpmenu");
		objbg = obj.style.backgroundImage;
	
		
		if( objbg.indexOf( "nestednavover.gif" ) > 0 ){
			obj.style.backgroundImage =	"url(images/nestednavoff.gif)";			  
		}
		
	}
	clearTimeout(timer);
	


}

function sout(){

	
	timer = setTimeout( "closeHelpMenu()", pauselength );
	

}