function newWindow(url, width, height)
{
	var winl = (screen.width - width) / 2;
	var wint = (screen.height - height) / 2;
	var features = 'width='+width+',height='+height+',toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,copyhistory=no,resizable=no,left='+winl+',top='+wint+',screenX='+winl+',screenY='+wint+'';
	
	win = window.open(url, '', features);
	win.focus();
}

function isBlank(val){
	if(val==null){return true;}
	for(var i=0;i<val.length;i++) {
		if ((val.charAt(i)!=' ')&&(val.charAt(i)!="\t")&&(val.charAt(i)!="\n")&&(val.charAt(i)!="\r")){return false;}
		}
	return true;
	}

function checkLogin(x)
{
	if(isBlank(x.form.username.value) || isBlank(x.form.password.value))
	{
		return false;
	}
	return true;
}

function refrigerant(id, langid)
{
	newWindow('refrigerant.php?id='+id+'&langid='+langid, '600', '500');
}