function printEmail(box, domain, text) {
	if (!text) text = box+'@'+domain;
	document.write('<a href="mailto:'+box+'@'+domain+'">'+text+'</a>');
}
function checkRequired(requiredFields, submitButtonId)
{
	var submit = true;
	for(i = 0; i < requiredFields.length; i++) {
		if(document.getElementById(requiredFields[i].id).value != '') {
			document.getElementById('req-' + requiredFields[i].id).innerHTML = '';
		} else {
			submit = false;
			document.getElementById('req-' + requiredFields[i].id).innerHTML = '*';
		}
	}
	document.getElementById(submitButtonId).disabled = !submit;
}
function checkUpdate(quantityFields, updateButtonId)
{
	var update = false;
	for(i = 0; i < quantityFields.length; i++) {
		if(document.getElementById('qty_' + quantityFields[i].id).value != quantityFields[i].quantity) {
			update = true;
		}
	}
	document.getElementById(updateButtonId).disabled = !update;
}
function winOpen(href, target, width, height) {
	window.open(href,target,'width='+width+',height='+height+',location=no,menubar=no,resizable=no,scrollbars=no,status=no')
}
function doCalc(lang) {
	var itog = document.getElementById('calctype').value * parseFloat(document.getElementById('calcval').value);
	var itog2 = "";
	itog2 += Math.round(itog * 1000) / 1000;
	if (!lang) itog2 = itog2.replace(/\./g, ",");
	document.getElementById('calcdisplay').firstChild.nodeValue = isNaN(itog) ? 'Îøèáêà!' : (itog > 100 ? parseInt(itog) : itog2);
}