sfHover = function() {
	if (document.getElementById("topnav") == null)
		return;
	
	var sfEls = document.getElementById("topnav").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className+=" sfhover";
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
		}
	}
}

if (window.attachEvent) window.attachEvent("onload", sfHover);

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_changeProp(objName,x,theProp,theValue) { //v6.0
  var obj = MM_findObj(objName);
  if (obj && (theProp.indexOf("style.")==-1 || obj.style)){
    if (theValue == true || theValue == false)
      eval("obj."+theProp+"="+theValue);
    else eval("obj."+theProp+"='"+theValue+"'");
  }
}



function openMailPopup(params)
{
	mailWindow = window.open('mail.php?' + params, 'Mail', 'width=400,height=300,toolbar=No,location=No,scrollbars=Yes,status=No,resizable=No,fullscreen=No');
}


function openProductMailPopup(product)
{
	mailWindow = window.open('mail_product.php?id=' + product,'Mail','width=400,height=300,toolbar=No,location=No,scrollbars=Yes,status=No,resizable=No,fullscreen=No');
}


function checkEmail(e) {
	ok = '1234567890qwertyuiop[]asdfghjklzxcvbnm.@-_QWERTYUIOPASDFGHJKLZXCVBNM';

	for(i = 0; i < e.length; i++){
		if(ok.indexOf(e.charAt(i)) < 0)
			return (false);
	} 

	if (document.images) {
		re = /(@.*@)|(\.\.)|(^\.)|(^@)|(@$)|(\.$)|(@\.)/;
		re_two = /^.+\@(\[?)[a-zA-Z0-9\-\.]+\.([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$/;
		if (!e.match(re) && e.match(re_two))
			return (-1);
	}
}


function validateNewsletterFields(form, msg)
{
	if (!checkEmail(form.email.value)) {
		alert(msg);
		return false;
	}
	
	//form.submit();
	return true;
}


function doFormFocus(obj) {
	if (obj.value == obj.defaultValue) 
		obj.value = '';
}

function doFormBlur(obj) {
	if (obj.value == '') obj.value = obj.defaultValue;
}


function validateSearchFields(form, msg, init)
{
	if (form.search.value.length < 3) {
		alert(msg);
		return false;
	}
	
	if (form.search.value == init) {
		alert(msg);
		return false;
	}
	
	return true;
}