/*------------------------------------------------------------
	www.juanpore.com 2007 Copyright  Rubén Poré BDEBURRO.COM
--------------------------------------------------------------*/

//TAGS ESPECIFICOS A LOS QUE AFECTA.
var tgs = new Array( 'div','td','tr');

//POSIBILIDAD DE TAMAÑOS DE FUENTE:
var szs = new Array( '9px','10px','11px','12px','14px','16px','20px','25px' );
//TAMBIEN PODEMOS CONFIGURARLO CON TAMAÑOS ESPECIFICOS
//var szs = new Array( 'xx-small','x-small','small','medium','large','x-large','xx-large' );
var startSz = 3;

function size( 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 > 7 ) sz = 7;
	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 ];
	}
}