var fontSize=new Array("xx-small","x-small","small","medium","large","x-large","xx-large");
var fontSizeIndex=GetCookie("fontsize")?GetCookie("fontsize"):1;

function toogleLgr(){
	if (fontSizeIndex<6) fontSizeIndex++;
	changeText();
}

function toogleSmr(){
	if (fontSizeIndex>0) fontSizeIndex--;
	changeText();
}

function changeText(){
	var emNodes = document.getElementsByTagName('td')
	var max = emNodes.length

	for(var i = 0;i < max;i++){
		var nodeObj = emNodes.item(i)
		if (nodeObj.className=="" || nodeObj.className=="maincontent"){
			nodeObj.style.fontSize=fontSize[fontSizeIndex];
		}
	}
	
	SetCookie ("fontsize",fontSizeIndex,null,"/");
}

function openWindow(theURL,winName,features) {
	window.open(theURL,winName,features);
}

function ChangeImages(){
	if (document.images){
		for (var i=0;i<ChangeImages.arguments.length;i+=2){
			document[ChangeImages.arguments[i]].src=ChangeImages.arguments[i+1];
		}
	}
}

function getCookieVal (offset) {
	var endstr = document.cookie.indexOf (";", offset);
	if (endstr == -1)
		endstr = document.cookie.length;

	return unescape(document.cookie.substring(offset, endstr));
}

function GetCookie (name) {
	var arg = name + "=";
	var alen = arg.length;
	var clen = document.cookie.length;
	var i = 0;
	while (i < clen) {
		var j = i + alen;
		if (document.cookie.substring(i, j) == arg)
			return getCookieVal (j);
		i = document.cookie.indexOf(" ", i) + 1;
		if (i == 0) break;
	}
	return null;
}

function SetCookie (name,value,expires,path,domain,secure) {
	document.cookie = name + "=" + escape (value) +
    ((expires) ? "; expires=" + expires.toGMTString() : "") + ((path) ? "; path=" + path : "") + ((domain) ? "; domain=" + domain : "") + ((secure) ? "; secure" : "");
}

function DeleteCookie (name,path,domain) {
	if (GetCookie(name)) {
		document.cookie = name + "=" + ((path) ? "; path=" + path : "") + ((domain) ? "; domain=" + domain : "") + "; expires=Thu, 01-Jan-70 00:00:01 GMT";
	}
}

function initText(){
	if(fontSizeIndex!=1 && !document.layers) changeText();
}