var isNull=/^[\s' ']*$/
if(isNull.test(tel)&&isNull.test(mobile))
{
alert('Phone number and mobile phone number cannot be empty .'); return;
}
var isNull=/^[\s' ']*$/
if(isNull.test(tel)&&isNull.test(mobile))
{
alert('Phone number and mobile phone number cannot be empty .'); return;
}