// navigation


helpNav = new Array();
helpNav[0] = "help_1.html";
helpNav[1] = "help_2.html";
helpNav[2] = "help_3.html";
helpNav[3] = "help_4.html";
helpNav[4] = "help_5.html";


// é
// ô


var theNavArray = helpNav;

function nav(pos){
	var thisPos = parent.POS;
	switch(pos){
		case "+":
			thisPos +=1;
			break;
		case "-":
			thisPos -=1;
			break;
		default:
			thisPos = pos;
	}
	parent.frames[0].location = theNavArray[thisPos];
	footCheck(thisPos);
	parent.POS = thisPos;
}


function footCheck(pos){
	theLoc = parent.frames[1].document.URL;
	x = theLoc.lastIndexOf("\/")+1;
	curFoot = theLoc.substr(x);
	if (pos > 0 && pos < theNavArray.length-1){
		foot = "foot_b.html";
	}else{
		if (pos == 0){
			foot = "foot_n.html";
		}else{
			foot = "foot_p.html";
		}
	}
	if (!(foot==curFoot)){
		parent.frames[1].location=foot;
	}
}