function initRollovers() {
	if (!document.getElementById) return

	var aPreLoad = new Array();
	var sTempSrc;
	var aImages = document.getElementsByTagName('img');

	for (var i = 0; i < aImages.length; i++) {		
		if (aImages[i].className == 'imgover') {
			var src = aImages[i].getAttribute('src');
			var ftype = src.substring(src.lastIndexOf('.'), src.length);
			var hsrc = src.replace(ftype, '_o'+ftype);

			aImages[i].setAttribute('hsrc', hsrc);
			
			aPreLoad[i] = new Image();
			aPreLoad[i].src = hsrc;
			
			aImages[i].onmouseover = function() {
				sTempSrc = this.getAttribute('src');
				this.setAttribute('src', this.getAttribute('hsrc'));
			}	
			
			aImages[i].onmouseout = function() {
				if (!sTempSrc) sTempSrc = this.getAttribute('src').replace('_o'+ftype, ftype);
				this.setAttribute('src', sTempSrc);
			}
		}
	}
}

function availCheck(obj, opt) {

	if(opt) {
		obj.value	=	obj.value.toUpperCase().trim();
	}
	
	if(thisName() == 'setting' || thisName() == 'terminate') {
		obj.value	=	obj.value.replace(/[^a-z0-9_\-\s]/gi,'');
	} else if(thisName() == 'create' && obj && obj.name == 'joinPasswd') {
		obj.value	=	obj.value.replace(/[^a-z0-9]/gi,'');
	} else {
		obj.value	=	obj.value.replace(/[^a-z0-9\s]/gi,'');
	}
	
	try{
		if(obj.name=='joinPasswd') {
			if(obj.value.length >= 6) {
				
				var rea=/[a-zA-Z]/;
				var re0=/[0-9]/;
				var flag=0; 
				var error=['','Password must be combination of letters and numbers.','Password must be combination of letters and numbers.'];
				var html	=	document.getElementById('ajaxpassword');
				
				if(rea.test(obj.value)){ 
					flag+=1;
				}
				
				if(re0.test(obj.value)){
					flag+=2;
				}
				
				if(flag!=3){
					document.form1.passwdCheck.value=0;
					html.innerHTML='<font color="red">'+error[flag]+'</font>';
				}else{

					var temp	=	'';
					var cnt		=	0;
					for(var i=0;i<obj.value.length;i++){
						if(i==0){
							continue;
						}
						if(obj.value.substr((i-1),1)	==	obj.value.substr(i,1)){
							cnt++;
						}else{
							cnt=0;
						}
						if(cnt==2){
							document.form1.passwdCheck.value=0;
							html.innerHTML='<font color="red">'+'Don\'t use repeating characters.'+'</font>';
							break;
						}
						
					}
					
					if(cnt<2){
						html.innerHTML='OK';
						document.form1.passwdCheck.value=1;
					}
					
				}
			} else {
				document.getElementById('ajaxpassword').innerHTML = '';
				document.form1.passwdCheck.value=0;
			}
		}

	} catch(e) {}
}

function upperCase(obj) {
	obj.value	=	obj.value.toUpperCase();
}

function emailCheck(obj) {
	var emailAvail	=	/^[._a-zA-Z0-9-]+@[._a-zA-Z0-9-]+\.[a-zA-Z]+$/;
	
	if(!emailAvail.test(obj)) return false;
	
	var limitEmail	=	['mailinator2.com','sogetthis.com','mailin8r.com','mailinator.net','spamherelots.com','thisisnotmyrealemail.com','mailinator.com','guerrillamail.com','tempemail.net','mailcatch.com','trashmail.net','zoemail.net','incognitomail.net','spamgourmet.com','litedrop.com','hidzz.com','pookmail.com','hushmail.com','spamavert.com','blockfilter.com','deadaddress.com','wh4f.org','spambox.us','mt2009.com','spam.la','tempinbox.com','saynotospams.com','makemoneytradingstocks.org','spamcero.com','spamcorptastic.com','20minutemail.com','signed-first-edition.com','tempe-mail.com','dumpyemail.com','shieldemail.com','dodgit.com','dandikmail.com','maileater.com','haltospam.com','nospamfor.us','nospam4.us','spamfree24.org','spamfree24.com','spamfree24.eu','spamfree24.de','spamfree24.info','spamfree24.net','tempomail.fr','mint.us.to','skeefmail.com','slopsbox.com'];
	
	for(var i=0;i<limitEmail.length;i++) {
		if(obj.substr(obj.indexOf('@')+1).trim() == limitEmail[i]) return false;
	}
	
	return true;
}

function engCheck(obj) {
    obj.value.replace(/[^a-zA-Z0-9]/gi,"");
}

function allGames() {
	var obj		=	document.getElementById("game");
	
	if(obj.style.display != "block") {
		if(!obj.innerHTML) {
			ajaxRequest("game","/allgames/allgames.php");
		}
		
		obj.style.display	=	"block";
	} else {
		obj.style.display	=	"none";
	}
}

function allChargeMenu() {
	var obj		=	document.getElementById("chargeMenu");
	
	if(obj.style.display != "block") {
		obj.style.display	=	"block";
	} else {
		obj.style.display	=	"none";
	}	
}

// 내비게이션은 달라도 함수는 openURL
function openURL(bigNum,smallNum) {
	var filePath;

	if(bigNum == 1) {
		filePath	=	"/";
	} else if(bigNum == 2) {
		allGames();
		return;
	} else if(bigNum == 3) {
		if(!netgameUserCheck()) return;
		allChargeMenu();
		return;
	} else if(bigNum == 4) {
		filePath	=	"/download/download.php";
	} else if(bigNum == 5) {
		if(!netgameUserCheck()) return;

		switch(parseInt(smallNum)) {
			case 2 :
				filePath	=	"/account/profile.php";
				break;
			case 3 :
				filePath	=	"/account/ncash.php";
				break;
			case 4 :
				filePath	=	"/account/usage.php";
				break;
			case 5 :
				filePath	=	"/account/recharge.php";
				break;
			case 6 :
				filePath	=	"/account/terminate.php";
				break;
			case 7 :
				filePath	=	"/account/coupon.php";
				break;
			default :
				//if(!emailConfirmCheck('account',  '', 'check')) return;
				//filePath	=	"/account/setting.php";
				
				netgameAccount(4); return;
				break;
		}
	} else if(bigNum == 6) {
		if(!netgameUserCheck()) return;

		if(!emailConfirmCheck('customer',  '', 'check')) return;
		
		switch(parseInt(smallNum)) {
			case 2 :
				filePath	=	"/help/status.php";
				break;
			default :
				filePath	=	"/help/inquiry.php";
				break;
		}
	} else {
		switch(parseInt(smallNum)) {
			case 2 :
				if(getCookie('MGUSA')) {
					error('You already signed in. The menu can be used before you signed in.');
					return;
				}

				filePath	=	"/login/fid.php";
				break;
			case 3 :
				if(getCookie('MGUSA')) {
					error('You already signed in. The menu can be used before you signed in.');
					return;
				}

				filePath	=	"/sign/find_password.php";
				break;
			case 4 :
				if(!netgameUserCheck()) return;

				//filePath	=	"/login/reenter.php";
				break;
			case 5 :
				
				if(getCookie('MGUSA')) {
					error('You already signed in. The menu can be used before you signed in.');
					return;
				}

				//filePath	=	"/login/reenter.php";
				break;
			case 6 :
				//if(!netgameUserCheck()) return;

				filePath	=	"/login/block_login.php";
				break;
			default :
				if(getCookie('MGUSA')) {
					error('You already signed in. The menu can be used before you signed in.');
					return;
				}

				//filePath	=	"/login/create.php";
				netgameIframeLayer('http://www.netgame.com/sign/create.php', 550, 636);
				return;
				break;
		}
	}
	
	if(filePath == "#") {
		alert("Coming soon...");
	} else {
		top.location.href	=	filePath;
	}
}