function show_cust_div()
{
document.getElementById('cust_serv').style.visibility = 'visible';
}

function hide_cust_div()
{
document.getElementById('cust_serv').style.visibility = 'hidden';
}

function clear_field(id)
{
	document.getElementById(id).value="";
}

function set_field_text(id,txt)
{
	document.getElementById(id).value=txt;
}