// sniff the browser
var g_sBrowser = document.all ? "IE" : "NN";
var g_fBrowserVersion = 5;
var g_sOS = navigator.platform.indexOf('Mac') == -1 ? "Win" : "Mac";
if (g_sBrowser == "IE")
{
	nVersionIndex = navigator.userAgent.indexOf('MSIE ') + 5;
	g_fBrowserVersion = parseFloat(navigator.userAgent.substring(nVersionIndex,nVersionIndex+4));
}
else if (g_sBrowser == "NN")
{
	g_fBrowserVersion = parseFloat(navigator.appVersion.substring(0,4));
	if (g_fBrowserVersion == 5)
	{
		nVersionIndex = navigator.userAgent.indexOf('Netscape6/') + 10;
		g_fBrowserVersion = parseFloat(navigator.userAgent.substring(nVersionIndex,nVersionIndex+3));
	}
}
//------------------------------------------- Home Page
function displaySchool(sSchoolID)
{
	if (sSchoolID == "") return;
	window.open('school.jsp?sid='+sSchoolID, '_top');
	
	//document.location.href='school.jsp?sid=' + sSchoolID;
}
function validateLogin()
{
	if (document.login.email.value == '' || document.login.password.value == '')
	{
		alert('Please enter your email and password.'); 
		return false;
	}
	else
	{
		document.login.sid.value='';
		return true;
//		document.login.submit();
	}
}
//------------------------------------------- Edit Contents
function addLesson(sSchoolID,sCourseID)
{
	window.open("addlesson.jsp?sid=" + sSchoolID + "&cid=" + sCourseID,"addlesson",'resizable=yes,top=200,left=200,width=340,height=100,scrollbars=0,toolbar=0,status=0,location=0,menubar=0');
}
function editLesson(sSchoolID,sCourseID)
{
	var sLessonID = "";
	if (editcontents.lid.checked) sLessonID = editcontents.lid.value;
	else
	{
		var nIndex = 0;
		while (editcontents.lid[nIndex])
		{
			if (editcontents.lid[nIndex].checked == true)
			{
				sActivityID = editcontents.lid[nIndex].value;
				break;
			}
			nIndex++;
		}
	}
	window.open("editlesson.jsp?sid=" + sSchoolID + "&cid=" + sCourseID + "&lid=" + sLessonID,"_self");
}
function deleteLesson()
{
	alert("Not yet implemented.");
}