/**** AUMENTA/DIMINUI FONTE ****/
//Specify spectrum of different font sizes:
var szs = new Array( '10px','11px','12px','13px','15px' );
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 > 4 ) sz = 4;
    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 ];
    } }

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


/************************************************************************************/