var expDays = 365; // number of days the cookie should last

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) {  
	var argv = SetCookie.arguments;  
	var argc = SetCookie.arguments.length;  
	var expires = (argc > 2) ? argv[2] : null;  
	var path = (argc > 3) ? argv[3] : null;  
	var domain = (argc > 4) ? argv[4] : null;  
	var secure = (argc > 5) ? argv[5] : false;  
	document.cookie = name + "=" + escape (value) + 
	((expires == null) ? "" : ("; expires=" + expires.toGMTString())) + 
	((path == null) ? "" : ("; path=" + path)) +  
	((domain == null) ? "" : ("; domain=" + domain)) +    
	((secure == true) ? "; secure" : "");
}

function DeleteCookie (name) {  
	var exp = new Date();  
	exp.setTime (exp.getTime() - 1);  
	var cval = GetCookie (name);  
	document.cookie = name + "=" + cval + "; expires=" + exp.toGMTString();
}

var exp = new Date(); 
exp.setTime(exp.getTime() + (expDays*24*60*60*1000));

function amt(){
	var count = GetCookie('count')
		if(count == null) {
			SetCookie('count','1')
			return 1
		}
		else {
			var newcount = parseInt(count) + 1;
			DeleteCookie('count')
			SetCookie('count',newcount,exp)
			return count
	   }
}

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

function checkCount() {
	var count = GetCookie('count');
		if (count == null) {
			count=1;
			SetCookie('count', count, exp);
			window.location="intro.html";
		}
		else {
			count++;
			SetCookie('count', count, exp);
	   }
}