//Check for empty or only non visible characters in string
function its_not_visible(string_value) {
 	var not_visible = " \n\r\t"

 	for (var counter = 0; counter < string_value.length; counter++)
	{  current_char = string_value.charAt(counter)
  		if (not_visible.indexOf(current_char) == -1) {
   			return false
  		}
 	}
 	return true
}

//Submit handler can be extended to many more fields
function submit_handler2() {

	if( its_not_visible(document.mi.custom_bname.value) ){
		alert('Please enter a Brides Name, Brides Name is required!');
		document.mi.custom_bname.focus() ;
		return false
	}

	if( its_not_visible(document.mi.custom_gname.value) ){
		alert('Please enter Grooms Name, Grooms Name is required!');
		document.mi.custom_gname.focus() ;
		return false
	}

	if( its_not_visible(document.mi.custom_phone.value) ){
		alert('Please enter Phone Number, Phone Number is required!');
		document.mi.custom_phone.focus() ;
		return false
	}
	
	if( its_not_visible(document.mi.from.value) ){
		alert('Please enter Email Address, Email Address is required!');
		document.mi.from.focus() ;
		return false
	}

}