function validate(form) {

if (form.fullname.value == "")
{
alert("Please enter a value for the \"Full Name\" field.");
form.fullname.focus();
return false;
}

if (form.address.value == "")
{
alert("Please enter a value for the \"Current Address\" field.");
form.address.focus();
return (false);
}

if (form.telephone.value == "")
{
alert("Please enter a value for the \"Contact Number\" field.");
form.telephone.focus();
return (false);
}

var checkOK = "0123456789,- ";
var checkStr = form.telephone.value;
var allValid = true;
var allNum = "";
for (i = 0;  i < checkStr.length;  i++)
{
ch = checkStr.charAt(i);
for (j = 0;  j < checkOK.length;  j++)
if (ch == checkOK.charAt(j))
break;
if (j == checkOK.length)
{
allValid = false;
break;
}
if (ch != ",")
allNum += ch;
}
if (!allValid)
{
alert("Please enter only digit characters (0-9) in the \"Contact Number\" field.");
form.telephone.focus();
return (false);
}

if (form.email.value == "")
{
alert("Please enter a value for the \"Email Address\" field.");
form.email.focus();
return (false);
}

return true;
}