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

//Specify spectrum of different font sizes:
var szs = new Array( 'xx-small','x-small','small','medium','large','x-large','xx-large' );
var startSz = 0;

function dfont(){
	document.getElementById('plus').src="images/iconplus.gif";
    document.getElementById('minus').src="images/iconminusdim.gif";

	startSz = 0;
	var d = document,cEl = null,i,j,cTags;
	if ( !( cEl = d.getElementById( 'body' ) ) ) cEl = d.getElementsByTagName( 'body' )[ 0 ];

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

}

function defaultfont(){
	document.getElementById('plus').src="images/iconplus.gif";
    document.getElementById('minus').src="images/iconminusdim.gif";

	startSz = 0;
	var d = document,cEl = null,sz = startSz,i,j,cTags;
	if ( !( cEl = d.getElementById( 'body' ) ) ) cEl = d.getElementsByTagName( 'body' )[ 0 ];
	
	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 ];	
	}
}

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 > 2 ) sz = 2;
	
	if(sz==0)  { document.getElementById('minus').src="images/iconminusdim.gif"; document.getElementById('plus').src="images/iconplus.gif";}
	else { document.getElementById('minus').src="images/iconminus.gif"; document.getElementById('plus').src="images/iconplus.gif";}
	
	if(sz==2)  { document.getElementById('plus').src="images/iconplusdim.gif"; document.getElementById('minus').src="images/iconminus.gif"; }
	else { document.getElementById('plus').src="images/iconplus.gif"; }
	
	startSz = sz;
		
	if ( !( cEl = d.getElementById( 'body' ) ) ) cEl = d.getElementsByTagName( 'body' )[ 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 ];
		
	}
}