//Specify affected tags. Add or remove from list:
var tgs = new Array( 'p', 'br', 'div','td','tr', 'td', 'h1', 'h2', 'ul', 'li', 'class', 'a', 'font');

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


function ts(sz ) {
	if (!document.getElementById) return
	var d = document,cEl = null,i,j,cTags;

	cEl= document.body; 

	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 ];
	}
	try{
	createCookie('textsize',sz,365);
	
		document.getElementById('imgL').src='/images/plus.gif';
		document.getElementById('imgL').disabled= false;
		document.getElementById('imgS').src='/images/minus.gif';
		document.getElementById('imgS').disabled= false;

		if (sz==4)
		{
		document.getElementById('imgL').src='/images/plus1.gif';
		document.getElementById('imgL').disabled= true;
		}
		if (sz==1)
		{
		document.getElementById('imgS').src='/images/minus1.gif';
		document.getElementById('imgS').disabled= true;
		}

	}catch(err)
	{}
}

function gts()
{
try{
var sz = readCookie('textsize');
ts(sz);
}catch(err)
{}
}

function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return 4;
}

function eraseCookie(name) {
	createCookie(name,"",-1);
}


function ts1( 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 ];
	}
}