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 eraseCookie(name){createCookie(name,"",-1);}
function eraseAllCookies(){eraseCookie('USERNAME');eraseCookie('PAGENAME');eraseCookie('PASSWORD');eraseCookie('SCHOOLID');	}