var useragent = navigator.userAgent;
var _isCTRL=false;
var _BROSER;
var _FFZoomCnt;

var nowZoom = 75; // ÇöÀçºñÀ²
var maxZoom = 110; // ÃÖ´ëºñÀ²
var minZoom = 60; // ÃÖ¼ÒºñÀ²

//È­¸é Å°¿î´Ù. 
function zoomIn() {
    if (nowZoom < maxZoom){ 
		 nowZoom += 10; //10%¾¿ Ä¿Áø´Ù. 
		document.body.style.fontSize = nowZoom + "%";
    }
} 

function zoomInBtn(){
	var browser = navigator.appName;

	if(browser.indexOf('Microsoft') !=-1){
		_BROSER = "IE";
	}
	zoomIn();
}

//È­¸é ÁÙÀδÙ. 
function zoomOut() { 
    if (nowZoom > minZoom){ 
		nowZoom -= 10; //10%¾¿ ÀÛ¾ÆÁø´Ù. 
		document.body.style.fontSize = nowZoom + "%";
    }
}

function zoomOutBtn(){
	var browser = navigator.appName;

	if(browser.indexOf('Microsoft') !=-1){
		_BROSER = "IE";
	}
	zoomOut();
}

//È­¸é ¿ø·¡´ë·Î 
function zoomDefault() { 
	nowZoom = 75; 
	document.body.style.fontSize =nowZoom + "%";
}