function validate(){

	for(var n=0 ; n <= document.forms[0].length - 1 ; n++){
		for(var x=0 ; x <= number_of_elements_to_check; x++){
			if(document.forms[0].elements[n].name == validation_array[x] && document.forms[0].elements[n].value == ""){
				alert( message_array[x]);
				document.forms[0].elements[n].focus()
				return;
			}
		}
	}
	
	document.forms[0].submit();
}