var error = [["אנא מלא את שדות החובה הבאים:\n\n", "שם\n", "אי־מייל\n", "נושא\n", "תוכן ההודעה\n"], ["Please fill in the following required fields:\n\n", "Name\n", "E-mail\n", "Subject\n", "Message\n"]];

var submitted = false;

function validate(form, lang) {
	var notice = ""; lang = (lang == 1 ? 1 : 0);

	if (/^[^\S\d]*$/.test(form.name.value))
		notice += error[lang][1];
	if (!/^\s*[a-z_\-0-9]+\@[a-z_\-0-9\.]+\.[a-z]{2,3}\s*$/i.test(form.email.value))
		notice += error[lang][2];
	if (/^[^\S\d]*$/.test(form.title.value))
		notice += error[lang][3];
	if (/^[^\S\d]*$/.test(form.message.value))
		notice += error[lang][4];
	
	if (notice.length > 0) {
		alert(error[lang][0] + notice.replace(/\n$/, ""));
		return false;
	} else if (!submitted) {
		submitted = true;
		return true;
	} else return false;
}