function deplie_contact(id_input, id_div1, id_div2) {
	var idinput = document.getElementById(id_input);
	var iddiv1 = document.getElementById(id_div1);
	var iddiv2 = document.getElementById(id_div2);
	if (idinput.value.length>0) {
		iddiv1.style.display='block';
		iddiv2.style.display='block';
	}
	else {
		iddiv1.style.display='none';
		iddiv2.style.display='none';
	}
}