function ValidateLogin (ErrorControl)
{
		
	if(IsBlank('Username')) {MVJS.Focus('Username');ShowError(ErrorControl,"Please enter user name"); return false;}	
	if(IsBlank('Password')) {MVJS.Focus('Password');ShowError(ErrorControl,"Please enter password"); return false;}
    return true;
}

function IsBlank(ControlId)
{
	var s = document.getElementById(ControlId).value;		
	 while ((s.substring(0,1) == ' ') || (s.substring(0,1) == '\n') || (s.substring(0,1) == '\r'))
	 {
	 s = s.substring(1,s.length); }


	 while ((s.substring(s.length-1,s.length) == ' ') || (s.substring(s.length-1,s.length) == '\n') || (s.substring(s.length-1,s.length) == '\r'))
	 { s = s.substring(0,s.length-1); }

	 if(s.length==0)
	 return true;
	 else
	 return false;
}
function ShowError(Control,Error)
{
	MVJS.Show(Control);
	MVJS.SetValue(Control,Error);
	var _Control = document.getElementById(Control);
	setTimeout(function () { if(_Control) _Control.style.display="none";},5000);
}