function valida(){
			
			if (document.form.user.value==''){
				alert('Username  is empty')
				form.user.focus()
				return false ;
			}
			
			else if (document.form.pass.value==''){
				alert('Password  is empty')
				form.pass.focus()
				
				return false;
			}
			
		
			else if (document.form.user.value.match(/^[A-Z0-9._-]+@[A-Z0-9][A-Z0-9.-]{0,61}[A-Z0-9]\.[A-Z.]{2,6}$/i)==null )
			
			{			
				alert('Bad username format ')
				form.user.focus()
				
				return false
			}
			
			

			else  {
				
				return true;
				//document.form.submit()
				
			}
		
		
		}

		
	//-->