/************************************************************************************************************************************
*** Document Text Sizer- Copyright 2003 - Taewook Kang.  All rights reserved. *******************************************************
*** Coded by: Taewook Kang (txkang.REMOVETHIS@hotmail.com) **************************************************************************
*** Web Site: http://txkang.com *****************************************************************************************************
*** Script featured on Dynamic Drive (http://www.dynamicdrive.com) ******************************************************************
*************************************************************************************************************************************	
*** Please retain this copyright notice in the script. ******************************************************************************
*** License is granted to user to reuse this code on their own website if, and only if, this entire copyright notice is included. ***
************************************************************************************************************************************/

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

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

var level = 0;

function ts( trgt,inc ) {
    level += inc;
    if(level > 2) 
    {
        level = 2;
        return;
    }
    if(level < -2)
    {
        level = -2;
        return;
    }

	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 ];
	}
}