/* verify number field */
function checknum(field) {
	var valid = "0123456789"
	var ok = "yes";
	var temp;
	for (var i=0; i<field.value.length; i++) {
	temp = "" + field.value.substring(i, i+1);
	if (valid.indexof(temp) == "-1") ok = "no";
	}
	if (ok == "no") {
	alert("only numbers are accepted!");
	field.focus();
	field.select();
	}
}

/* create the dataset and write to textarea */
function build_it(form) {

form.print_out.value='';

    if (form.input5.value != "") {
      form.print_out.value="<\!\-\- keywords\: "  +
      form.input5.value + " \-\->\n\n";
    }
    if (form.input1.value != "") {
      form.print_out.value +="<meta name=\"title\" content=\"" +
      form.input1.value + "\">\n";
    }
    if (form.input2.value != "") {
      form.print_out.value +="<meta name=\"author\" content=\"" +
      form.input2.value + "\">\n";
    }
    if (form.input9.value != "") {
      form.print_out.value +="<meta name=\"owner\" content=\"" +
      form.input9.value + "\">\n";
    }
    if (form.input3.value != "") {
      form.print_out.value +="<meta name=\"subject\" content=\"" +
      form.input3.value + "\">\n";
    }
    if (form.input11.value != "") {
      form.print_out.value +="<meta name=\"rating\" content=\"" +
      form.input11.value + "\">\n";
    }
    if (form.input4.value != "") {
      form.print_out.value +="<meta name=\"description\" content=\"" +
      form.input4.value + "\">\n";
    }
    if (form.input5.value != "") {
      form.print_out.value +="<meta name=\"keywords\" content=\"" +
      form.input5.value + "\">\n";
    }
    if (form.input6.value != "") {
      form.print_out.value +="<meta name=\"revisit-after\" content=\"" +
      form.input6.value + " days\">\n";
    }
    				 {
      form.print_out.value +="<meta name=\"generator\" content=\"www\.gratos\.be\">\n";
    }
    if (form.input7.value != "") {
      form.print_out.value +="<meta name=\"language\" content=\"" +
      form.input7.value + "\">\n";
    }
    if (form.input8.value != "") {
      form.print_out.value +="<meta name=\"copyright\" content=\"" +
      form.input8.value + "\">\n";
    }
    if (form.input10.value != "") {
      form.print_out.value +="<meta name=\"robots\" content=\"" +
      form.input10.options[form.input10.selectedindex].value + "\">\n";
    }
    if (form.input12.checked) {
      form.print_out.value +="<meta http-equiv=\"pragma\" content=\"no-chache\">\n";
    }
    if (form.input13.value != "") {
      form.print_out.value +="<meta http-equiv=\"refresh\" content=\"" +
      form.input13.options[form.input13.selectedindex].value + "\">\n";
    }
}