/********************************************************************

		  function:	createCookie(name, value, days)
		  Author:	tneist
		  Date Created:	Nov. 1, 2005
		  Purpose:	create a cookie via javascript
		  Input:	name - name of cookie
		  			value - value of cookie
					days - when it expires

		  Output:	cookie
		  Dependancies: none

		  Change Log (name-date-change):

	  ********************************************************************/

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)
		  Author:	tneist
		  Date Created:	Nov. 1, 2005
		  Purpose:	reads a cookie that has been created by createCookie()
		  Input:	name - name of cookie you wish to retrieve
		  Output:	value of the cookie retrieved
		  Dependancies:

		  Change Log (name-date-change):

	  ********************************************************************/

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:	eraseCookie(name)
		  Author:	tneist
		  Date Created:	Nov. 1, 2005
		  Purpose:	erases a cookie
		  Input:	name - name of cookie you want erased
		  Output:	erases cookie
		  Dependancies: none

		  Change Log (name-date-change):

	  ********************************************************************/

function eraseCookie(name)
{
	createCookie(name,"",-1);
}