function tabmph1 ()
	 {
	 if(document.connect.n1.value.length == 3)
		{
		document.connect.n2.focus();
		}
	 }
 
function tabmph2 ()
	 {
	 if(document.connect.n2.value.length == 3)
		{
		document.connect.n3.focus();
		}
	 }