function open_image(URL) {
newWindow = window.open("","newWindow","width="+646+",height="+528+",left=200,top=200, scrollbars=0");
newWindow.document.open();
newWindow.document.write('image');
newWindow.document.write('');
newWindow.document.write('');
newWindow.document.write('
');
newWindow.document.write('');
newWindow.document.close();
newWindow.focus();
}
function checkContactForm(form) {
var emailRegExp1 = /^([A-Za-z0-9]+)\.*([A-Za-z0-9]+)@([A-Za-z0-9]+)\.([a-z]+)$/;
var menoRegExp1 = /^([A-Za-zÁÉÍÓÚŃŔČĚŇŮŽŠĎĽŤŘÝÄËĎÖÜÂĘÎÔŰáéíóúńŕčěňůžšďľťřýäëďöüâęîôűç]+)$/;
var priezviskoRegExp1 = /^([A-Za-zÁÉÍÓÚŃŔČĚŇŮŽŠĎĽŤŘÝÄËĎÖÜÂĘÎÔŰáéíóúńŕčěňůžšďľťřýäëďöüâęîôűç]+)$/;
if(form.name.value == "") var menoField = "- chýba meno \n";
else var menoField = "";
if (!menoRegExp1.test(form.name.value)) var menoCheckField = "- v poli meno ste uviedli nepovolené znaky \n";
else var menoCheckField = "";
if(form.surname.value == "") var priezviskoField = "- chýba priezvisko \n";
else var priezviskoField = "";
if (!priezviskoRegExp1.test(form.surname.value)) var priezviskoCheckField = "- v poli priezvisko ste uviedli nepovolené znaky \n";
else var priezviskoCheckField = "";
if(form.phone.value == "") var telefonField = "- chýba telefónne číslo \n";
else var telefonField = "";
if(form.mail.value == "") var emailField = "- chýba e-mailová adresa \n";
else var emailField = "";
if (!emailRegExp1.test(form.mail.value)) var emailCheckField = "- e-mailová adresa bola zadaná nesprávne \n";
else var emailCheckField = "";
if ( (priezviskoField != "") || (priezviskoCheckField != "") || (menoField != "") || (menoCheckField != "") || ((telefonField != "") && ((emailField != "") || (emailCheckField != ""))) ) {
if (priezviskoField != "" && priezviskoCheckField != "") priezviskoCheckField="";
if (menoField != "" && menoCheckField != "") menoCheckField="";
if (emailField != "" && emailCheckField != "") emailCheckField="";
alert ('Formulár nemôže byť odoslaný:\n\n' + priezviskoField + priezviskoCheckField + menoField + menoCheckField + telefonField + emailField + emailCheckField);
return (false);
}
else return true;
}