var oneOutOfX = 10050;  //change to 10050 so that one of every 10050 visitors gets the pop-up

function TrySweeps()
{
	if(RandomCheck() == 1)
	{
		if(ValidIP(sweepsIP))
		{
			if(!ReadCookie("ponySurvey"))
			{
				CreateCookie("ponySurvey","1",60);

				window.open("https://apps.unipcanpn.commm/pony/ponySurvey.html","ponySurvey","width=500,height=430,left=50,top=50,location=no,menubar=no,resizable=no,scrollbars=no,status=no,toolbar=no,fullscreen=no");
			}
		}		
	}
}

function CreateCookie(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 ReadCookie(name)
{
	var nameEQ = name + "=";
	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(nameEQ) == 0) 
		{
			return c.substring(nameEQ.length,c.length);
		}
	}
	return null;
}

function RandomCheck() 
{
	var rc = Math.floor( 1 + Math.random() * oneOutOfX);
	return rc;
}


function ValidIP(ipaddr)
{
	tmpIP = new String(ipaddr);

	return CheckIP(tmpIP.split("."));
}

function CheckIP(splitIP)
{
	var valid = true;
	var tmpInt = 0;

	if(splitIP[0] == "162" && splitIP[1] == "49" && splitIP[2] == "35" && splitIP[3] == "43")
	{
		valid = false;
	}
	else if(splitIP[0] == "10")
	{
		if(splitIP[1] == "1" || splitIP[1] == "2" || splitIP[1] == "3" || splitIP[1] == "4")
		{
			valid = false;
		}
	}
	else if(splitIP[0] == "64" && splitIP[1] == "37")
	{
		tmpInt = parseInt(splitIP[2]);
		if(tmpInt >= 152 && tmpInt <= 155)
		{
			tmpInt = parseInt(splitIP[3]);
			if(tmpInt >= 1 && tmpInt <= 255)
			{
				valid = false;
			}
		}
		else if(tmpInt == 128)
		{
			tmpInt = parseInt(splitIP[3]);
			if(tmpInt >= 0 && tmpInt <= 19)
			{
				valid = false;
			}
		}
	}
	else if(splitIP[0] == "146" && splitIP[1] == "215" && splitIP[2] == "0")
	{
		tmpInt = parseInt(splitIP[3]);
		if(tmpInt >= 0 && tmpInt <= 16)
		{
			valid = false;
		}
	}
	else if(splitIP[0] == "160" && splitIP[1] == "33")
	{
		tmpInt = parseInt(splitIP[2]);
		if(tmpInt == 0)
		{
			tmpInt = parseInt(splitIP[3]);
			if(tmpInt >= 0 && tmpInt <= 16)
			{
				valid = false;
			}
		}
		else if(tmpInt == 82)
		{
			tmpInt = parseInt(splitIP[3]);
			if(tmpInt >= 112 && tmpInt <= 128)
			{
				valid = false;
			}
		}
		else if(tmpInt == 98)
		{
			tmpInt = parseInt(splitIP[3]);
			if(tmpInt >= 112 && tmpInt <= 128)
			{
				valid = false;
			}
		}
	}

	return valid;
}