// fontSize
var maxFontSize = 140;
var minFontSize =  60;
var fontChangeStep = 20;



function setCookie(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 ResizesFonts(diff) {
	if (diff == 0) {
		document.body.style.fontSize = "100.01%";
		resizeMaps(100);
		setCookie("fontSize", document.body.style.fontSize, 100);
		return;
	}
	if(document.body.style.fontSize == "") {
		document.body.style.fontSize = "100.01%";
		resizeMaps(100);
	}
	
	var currSize = document.body.style.fontSize.substring(0, document.body.style.fontSize.indexOf("%"));
	if((currSize >= 140 && diff > 0) || (currSize <= 60 && diff < 0)) {
		return;
	}
	 
	currSize -= (-diff*fontChangeStep) ;
	
	document.body.style.fontSize = currSize + "%";
	resizeMaps(currSize);
	
	setCookie("fontSize", document.body.style.fontSize, 100);
}
// fontSize

function initFontSize() {
	var name = "fontSize=";
	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(name) == 0) {
			var currSize = c.substring(name.length,c.length);
			document.body.style.fontSize = currSize;
			resizeMaps(currSize);
			return;
		}
	}
	document.body.style.fontSize = "100.01%";
	resizeMaps(100);
}

function resizeMaps(size) {
	var areas = document.getElementsByTagName("area");
	for (var i = 0; i < areas.length; i++) {
		var area = areas[i];
		if (area.coordsOri)
			area.coords = area.coordsOri;
		else
			area.coordsOri = area.coords;
		if (size != 100) {
			var oldCoordsArr = area.coords.split(",");
			var newCoords = "";
			for (var j = 0; j < oldCoordsArr.length; j++) {
				var pos = parseInt(parseInt(oldCoordsArr[j]) * parseFloat(size)/100);
				if (newCoords != "") newCoords += ",";
				newCoords += String(pos);
			}
			area.coords = newCoords;
		}
	}
}