function checkForm(f) {
		var test = true;
		with(f) {
			for(i = 0; i < elements.length; i++) {
				if (elements[i].title == 'ecomvina') {
					test = checkElement(elements[i]);
				}
			}
		}
		return test;
	}
	
	function checkElement(elem) {
		elem.style.backgroundColor = 'white';
		if (elem.value == "") {
			elem.style.backgroundColor = 'yellow';
			return false
		}
		return true;
	}
	
	function l(u, q, tg, tp) {
		try {
			if (window.XMLHttpRequest) {
				r = new XMLHttpRequest();
			} else if (window.ActiveXObject) {
				r = new ActiveXObject("Microsoft.XMLHTTP");
			}
			r.onreadystatechange = function() {
				if (r.readyState == 4) {
					if (r.status == 200) {
						if (tg == 'xml') {
							return r.responseXML;
						} else {
							//alert(r.responseText);
							document.getElementById(tg).innerHTML = r.responseText;
							document.location.href = '#anchor_' + tg;
						}
					} else {
						alert('There was a problem with the request.');
					}
				}
			};
			if (tp == '') {
				r.open('GET', u + '?' + q);
				r.send(null);
			} else {
				r.open('POST', u);
				r.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
				r.send(q);
			}
		}  catch (e) {
			alert(e.message);
		}
	}
/*
	function getFormVar(f) { // f=form, tp=type, n=name
		var vr = "";
		with(f) {
			for(i = 0; i < elements.length; i++) {
				if (elements[i].type == 'button' ||
					elements[i].type == 'reset' ||
					elements[i].name == 'notsend' ||
					((elements[i].type == 'radio' || elements[i].type == 'checkbox')&& elements[i].checked == false)) 
					continue;
				
				vr += "&" + elements[i].name + "=" + elements[i].value;
			}
		}
		return vr;
	}
*/