// funcion SHOW, mostra los layers
function show(n) { 
	if (ng5) document.getElementById("L" + n).style.display = "inline"; 
	else if (ns4) document.layers["L" + n].display = "show"; 
	else if (ie4) document.all["L" + n].style.display = "inline";
	return false;
}
// funcao show, mostra as layers
function hide(n) { 
	if (ng5) document.getElementById("L" + n).style.display = "none"; 
	else if (ns4) document.layers["L" + n].display = "hide"; 
	else if (ie4) document.all["L" + n].style.display = "none";
	return false;
}

//Specify affected tags. Add or remove from list:
var tgs = new Array( 'div','td','tr');

//Specify spectrum of different font sizes:
var szs = new Array( 'xx-small','x-small','small','medium','large','x-large','xx-large' );
var startSz = 2;

function ts( trgt,inc ) {
	if (!document.getElementById) return
	var d = document,cEl = null,sz = startSz,i,j,cTags;
	
	sz += inc;
	if ( sz < 0 ) sz = 0;
	if ( sz > 6 ) sz = 6;
	startSz = sz;
		
	if ( !( cEl = d.getElementById( trgt ) ) ) cEl = d.getElementsByTagName( trgt )[ 0 ];

	cEl.style.fontSize = szs[ sz ];

	for ( i = 0 ; i < tgs.length ; i++ ) {
		cTags = cEl.getElementsByTagName( tgs[ i ] );
		for ( j = 0 ; j < cTags.length ; j++ ) cTags[ j ].style.fontSize = szs[ sz ];
	}
}