//
// validate new user
//
function validateUser()
{
	// Email
	//
	var emailID=document.userform.email;
	if ((emailID.value==null)||(emailID.value==""))
	{
		alert("Please enter a valid email address");
		emailID.focus();
		return false;
	}
	if (echeck(emailID.value)==false)
	{
		alert("Please enter a valid email address");
		emailID.focus();
		return false;
	}
	//
	// Password
	//
	var pswd=document.userform.pwd;
	var pstr = pswd.value;

	if (pswd.value == '' || (pswd.value==null))
	{	alert('Please enter your password');
		pswd.focus();
		return false;
	}
	//
	// Start Date
	//
	var start=document.userform.startdate;
	if ((start.value==null)||(start.value==""))
	{
		alert("Please enter a valid start date (yyyy-mm-dd)");
		start.focus();
		return false;
	}
	return true;
}
//
// validate signin
//
function validateSignin(pw)
{
	// Email
	//
	var emailID=document.signin.email;
	if ((emailID.value==null)||(emailID.value==""))
	{
		alert("Please enter a valid email address");
		emailID.focus();
		return false;
	}
	if (echeck(emailID.value)==false)
	{
		alert("Please enter a valid email address");
		emailID.focus();
		return false;
	}
	//
	// Password
	//
	if (pw == '1')
	{
		var pswd=document.signin.pwd;
		if ((pswd.value == '') || (pswd.value==null))
		{	alert('Please enter your password');
			pswd.focus();
			return false;
		}
	}
	return true;
}
/**
 * DHTML email validation script. Courtesy of SmartWebby.com (http://www.smartwebby.com/dhtml/)
 */
function echeck(str) {

		var at="@";
		var dot=".";
		var lat=str.indexOf(at);
		var lstr=str.length;
		var ldot=str.indexOf(dot);
		if (str.indexOf(at)==-1){
		   return false;
		}
		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   return false;
		}
		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    return false;
		}
		 if (str.indexOf(at,(lat+1))!=-1){
		    return false;
		 }
		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    return false;
		 }
		 if (str.indexOf(dot,(lat+2))==-1){
		    return false;
		 }
		 if (str.indexOf(" ")!=-1){
		    return false;
		 }
 		 return true;					
}