function openImg(theURL) {
	var wLeft = (screen.width-500)/2;
	var wTop = (screen.height-706)/2;
	var features = 'scrollbars=no,width=500,height=706,top='+wTop+',left='+wLeft;
	var winName = '';
	window.open(theURL,winName,features);
}

function getURL(theURL) {
	var features = '';
	var winName = '';
	window.open(theURL,winName,features);
}

function checkFormKontakt() {
	var gname, gemail, gmessage;
	with(window.document.formKontakt) {
		gname    = txtName;
		gemail   = txtEmail;
		gmessage = mtxMessage;
	}
	if (gname.value == '') {
		alert('Palun sisesta oma nimi!');
		gname.focus();
		return false;
	}
	else if (!isEmail(trim(gemail.value))) {
		alert('Palun sisesta korrektne e-posti aadress!');
		gemail.focus();
		return false;
	}
	else if (gmessage.value == '') {
		alert('Palun sisesta oma sõnum!');
		gmessage.focus();
		return false;
	} else {
		return true;
	}
}

function checkFormMailinglist() {
	var gname, gemail, gage, gsex;
	with(window.document.formMailinglist) {
		gname    = txtName;
		gemail   = txtEmail;
		gage = menuAge;
		gsex = radioSex;
	}
	if (gname.value == '') {
		alert('Palun sisesta oma nimi!');
		gname.focus();
		return false;
	}
	else if (!isEmail(trim(gemail.value))) {
		alert('Palun sisesta korrektne e-posti aadress!');
		gemail.focus();
		return false;
	}
	else if (gage.value == '') {
		alert('Palun vali oma vanus!');
		gage.focus();
		return false;
	}
	else if (valButton(gsex) == null) {
		alert('Palun vali oma sugu!');
		return false;
	} else {
		return true;
	}
}

function valButton(btn) {
    var cnt = -1;
    for (var i=btn.length-1; i > -1; i--) {
        if (btn[i].checked) {cnt = i; i = -1;}
    }
    if (cnt > -1) return btn[cnt].value;
    else return null;
}

function trim(str) {
	return str.replace(/^\s+|\s+$/g,'');
}

function isEmail(str) {
	var regex = /^[-_.a-z0-9]+@(([-a-z0-9]+\.)+(ad|ae|aero|af|ag|ai|al|am|an|ao|aq|ar|arpa|as|at|au|aw|az|ba|bb|bd|be|bf|bg|bh|bi|biz|bj|bm|bn|bo|br|bs|bt|bv|bw|by|bz|ca|cc|cd|cf|cg|ch|ci|ck|cl|cm|cn|co|com|coop|cr|cs|cu|cv|cx|cy|cz|de|dj|dk|dm|do|dz|ec|edu|ee|eg|eh|er|es|et|eu|fi|fj|fk|fm|fo|fr|ga|gb|gd|ge|gf|gh|gi|gl|gm|gn|gov|gp|gq|gr|gs|gt|gu|gw|gy|hk|hm|hn|hr|ht|hu|id|ie|il|in|info|int|io|iq|ir|is|it|jm|jo|jp|ke|kg|kh|ki|km|kn|kp|kr|kw|ky|kz|la|lb|lc|li|lk|lr|ls|lt|lu|lv|ly|ma|mc|md|mg|mh|mil|mk|ml|mm|mn|mo|mp|mq|mr|ms|mt|mu|museum|mv|mw|mx|my|mz|na|name|nc|ne|net|nf|ng|ni|nl|no|np|nr|nt|nu|nz|om|org|pa|pe|pf|pg|ph|pk|pl|pm|pn|pr|pro|ps|pt|pw|py|qa|re|ro|ru|rw|sa|sb|sc|sd|se|sg|sh|si|sj|sk|sl|sm|sn|so|sr|st|su|sv|sy|sz|tc|td|tf|tg|th|tj|tk|tm|tn|to|tp|tr|tt|tv|tw|tz|ua|ug|uk|um|us|uy|uz|va|vc|ve|vg|vi|vn|vu|wf|ws|ye|yt|yu|za|zm|zw)|(([0-9][0-9]?|[0-1][0-9][0-9]|[2][0-4][0-9]|[2][5][0-5])\.){3}([0-9][0-9]?|[0-1][0-9][0-9]|[2][0-4][0-9]|[2][5][0-5]))$/i;
	return regex.test(str);
}