/**
 *	FILENAME:  cookie.js
 *	Functions:
 *		saveCookie(name, value, domain)
 *		readCookie(name)
 *		deleteCookie(name, domain)
 */
/**
 * Name: saveCookie
 * Description:
 * Set's the cookie with the given values, domain is optional
 */
 function saveCookie(name, value) {    
	var date = new Date();
	//TODO(remove later):Temporary Fix:To override KIDS Header with TEACHERS DEFAULT Header
	if (name == "header" && value == "kids") { value = "teacherDefault";}
	date.setTime(date.getTime() + (365*100*24*60*60*1000)); //setting persistance cookie for 100 years
	document.cookie = name + "="+value+";expires="+date.toGMTString()+"; path=/" + ((__domain__) ? "; domain=" + __domain__ : "");
}
/**
 * Name: readCookie
 * Description:
 * Returns the value of the cookie with the given name
 */
function readCookie(name) {
	var name_value = 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(name_value) == 0)
		{
			return c.substring(name_value.length,c.length);
		}
	}
	return null
}
/**
 * Name: deleteCookie
 * Description:
 * Delete's the cookie with the given name, domain is optional
 */
function deleteCookie(name) {	
	saveCookie(name, "", -1, __domain__)
}

/**
 * Name: cls
 * Description:
 * Clears the text field on focus for default value
 */
function cls(field){
	if (field.value == "Enter Email Address" || field.value == "Enter Your Email Address") field.value = "";
}