// Document.all을 쓰지말것!!(Chrome에서 호환성문제있음)
var Browser = { a : navigator.userAgent.toLowerCase() }

Browser = {
    ie : Browser.a.indexOf('msie') != -1,
    ie_SV1 : Browser.a.indexOf('sv1') != -1,
    ie_SV2 : Browser.a.indexOf('sv2') != -1,
    ie6 : Browser.a.indexOf('msie 6') != -1,
    ie7 : Browser.a.indexOf('msie 7') != -1,
    ie8 : Browser.a.indexOf('msie 8') != -1,
	opera : Browser.a.indexOf('opera') != -1, 
//    opera : !!window.opera,
    safari : Browser.a.indexOf('safari') != -1,
    safari3 : Browser.a.indexOf('applewebkit/5') != -1,
//    mac : Browser.a.indexOf('mac') != -1,
    chrome : Browser.a.indexOf('chrome/') != -1,
    firefox : (Browser.a.indexOf('firefox') != -1) && (navigator.userAgent.toLowerCase().indexOf("navigator") == -1),
    firefox2 : Browser.a.indexOf('firefox/2.') != -1,
    firefox3 : Browser.a.indexOf('firefox/3.') != -1,
	infopath : Browser.a.indexOf('infopath') != -1
//운영체제
//Browser.win = navigator.userAgent.toLowerCase().indexOf("win") != -1; 
//Browser.vista = navigator.userAgent.toLowerCase().indexOf("nt 6") != -1; this.xp = navigator.userAgent.toLowerCase().indexOf("nt 5.1") != -1; this.w2k = navigator.userAgent.toLowerCase().indexOf("nt 5.0") != -1; this.w98 = navigator.userAgent.toLowerCase().indexOf("windows 98") != -1;
//Browser.mac = navigator.userAgent.toLowerCase().indexOf("mac") != -1;
//Browser.unix = !(Browser.win || Browser.mac);  	
}

function browsercheck()
{	
	if (Browser.chrome) { return "chrome"; } 
	else if (Browser.ie6) { return "ie";	} 
	else if (Browser.ie7) { return "ie";	} 
	else if (Browser.ie8) { return "ie";	} 
	else if (Browser.opera) { return "opera"; } 
	else if (Browser.safari) { return "safari"; } 
	else if (Browser.safari3) { return "safari"; } 
	else if (Browser.firefox) { return "firefox"; } 
	else { alert("It is maybe ie"); }
}

function Logo_Margin()
{
	var facebook_logo = document.getElementById("facebooklogo");
	var twitter_logo = document.getElementById("twitterlogo");
	
	if(browsercheck() == "ie")
	{
		twitter_logo.style.paddingTop = "3px";
		facebook_logo.style.paddingTop = "3px";
	}
	else if(browsercheck() == "chrome")
	{
		twitter_logo.style.paddingTop = "2px";
		facebook_logo.style.paddingTop = "2px";
	}	
}

var iCnt = 0;

function blinkIt() {
	iCnt = iCnt%4;
	
	for(i=0;i<document.all.tags('blink').length;i++){
		s = document.all.tags('blink')[i];
		if(s.style==null) return;
		s.style.visibility = (s.style.visibility=='visible') ? 'hidden':'visible';
	}
	iCnt++;
}

function stringtoBlinkCursor(id)
{
	var blink_obj = document.createElement("blink");
	if(document.getElementById(id)==null) return;
	blink_obj.innerHTML= "_";
	document.getElementById(id).appendChild(blink_obj);
}

//var admin_btn_flag = true
function admin_btn()
{
		menu=document.getElementById("admin_menu");
		menu.style.display = (menu.style.display=='none') ? '' : 'none';
}