var dins_sub = new Array(false,false,false,false,false,false,false);
var sub_actual = 0;

// Detect if the browser is IE or not.
// If it is not IE, we assume that the browser is NS.
var IE = document.all?true:false

// If NS -- that is, !IE -- then set up for mouse capture
//if (!IE) document.captureEvents(Event.MOUSEMOVE)

// Set-up to use getMouseXY function onMouseMove
document.onmousemove = getMouse;

// Temporary variables to hold mouse x-y pos.s
var tempY = 0;

// Main function to retrieve mouse x-y pos.s

function getMouse(e) {
	if (IE) { // grab the x-y pos.s if browser is IE
		tempY = event.clientY + document.documentElement.scrollTop;
		//document.getElementById('xivatu').innerHTML = document.documentElement.scrollTop;
	} else {  // grab the x-y pos.s if browser is NS
		tempY = e.pageY;
		//document.getElementById('xivatu').innerHTML = tempY;
	}  
	// catch possible negative values in NS4
	if (tempY < 0){tempY = 0}
	// show the position values in the form named Show
	
	if((tempY > 318) || (tempY < 135)) {
		if(sub_actual != 0){
			document.getElementById('submenu' + sub_actual).style.visibility = "hidden";
			if(sub_actual == apartat) document.images['b' + sub_actual].src=eval('b' + sub_actual + '_act').src;
			else document.images['b' + sub_actual].src=eval('b' + sub_actual + '_off').src;
			dins_sub[sub_actual] = false;
			sub_actual = 0;
		}
	}else{}	
}


function mostraSub(op) {
	if(!dins_sub[op]){
	
		if(sub_actual != 0) document.getElementById('submenu' + sub_actual).style.visibility = "hidden";
		document.getElementById('submenu' + op).style.visibility = "visible";	
		
		dins_sub[sub_actual] = false;
		dins_sub[op] = true;
		
		// rollover menú ppal
		document.images['b' + op].src=eval('b' + op + '_on').src;
		if(sub_actual != 0) {
			if(sub_actual == apartat) document.images['b' + sub_actual].src=eval('b' + sub_actual + '_act').src;
			else document.images['b' + sub_actual].src=eval('b' + sub_actual + '_off').src;
		}
		
		sub_actual = op;
		
		return true;
	}
}


function ocultaSub(op) {
	if(sub_actual != 0) {
		document.getElementById('submenu' + sub_actual).style.visibility = "hidden";
		// ESTÀ MALAMENT!!!!!!!
		if(apartat == 6) document.images['b' + sub_actual].src=eval('b' + sub_actual + '_act').src;
		else document.images['b' + sub_actual].src=eval('b' + sub_actual + '_off').src;
		// *************************************************
		dins_sub[sub_actual] = false;
		sub_actual = 0;
	}
}