/*------------------------------------------------------------
	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');

//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 ];
	}
	storeSize(sz);
}

function reset(trgt, newsz) {
	if (!document.getElementById) return
	var d = document,cEl = null,sz = newsz,i,j,cTags;
	
		
	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 ];
	}
	storeSize(sz);
}
/* 
	function setCookie()
	sets the cookie
*/
function setCookie(name, value, expires, path, domain, secure) { 
	var curCookie = name + "=" + escape(value) + 
	((expires) ? "; expires=" + expires.toGMTString() : "") + 
	((path) ? "; path=" + path : "") + 
	((domain) ? "; domain=" + domain : "") + 
	((secure) ? "; secure" : "") 
	document.cookie = curCookie 
} 
/* 
	function getCookie()
	reads the cookie
*/
function getCookie(name) { 
	var prefix = name + "=" 
	var cookieStartIndex = document.cookie.indexOf(prefix) 
	if (cookieStartIndex == -1) 
	return null 
	var cookieEndIndex = document.cookie.indexOf(";", cookieStartIndex + 
	prefix.length) 
	if (cookieEndIndex == -1) 
	cookieEndIndex = document.cookie.length 
	return unescape(document.cookie.substring(cookieStartIndex + 
	prefix.length, 
	cookieEndIndex)) 
} 
/* 
	function storeSize()
	saves the current settings of the document in a cookie
*/
function storeSize(sz){
	var exp = new Date();
	exp.setTime(exp.getTime() + 24*60*60*90*1000);
	setCookie("cpfontsize",sz,exp);
}
/* 
	function init()
	loads the cookiedata and changes the document accordingly, if there is no 
	cookie, sets the standard settings and stores it 
*/
function init(){
    if (!document.layers){
	var sz=getCookie("cpfontsize");
	if (sz!=null)  reset('body',sz);
    }
}