function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

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_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function clearDefault(el) {
	if (el.defaultValue==el.value) el.value = ""
}

/* clear field */

function clearDefault(el) {
	if (el.defaultValue==el.value) el.value = ""
}


/* validate form */

function clearDefault (el) {
	if (el.defaultValue==el.value) el.value = ""
}

function resetDefault (el) {
	if (el.value == "") el.value = el.defaultValue
}

function checkForm (frm) {
	var emailRX = /^([\w]+)(.[\w]+)*@([\w]+)(.[\w]{2,3}){1,2}$/;
	var msg = "";
	if (frm.submit_type.value == "") {
		return false;
	} else if (frm.submit_type.value == "signup") {
		if (frm.fname.value == frm.fname.defaultValue) {
			msg += "Please enter your first name.<br />";
		}
		if (frm.lname.value == frm.lname.defaultValue) {
			msg += "Please enter your last name.<br />";
		}
		if (emailRX.test(frm.email.value) != true) {
			msg += "Please enter a valid email.<br />";
		}
		if (frm.phone.value == frm.phone.defaultValue) {
			msg += "Please enter your phone number.<br />";
		}
		if (frm.birthdate.value == frm.birthdate.defaultValue) {
			msg += "Please enter your birth date.<br />";
		}
	// process contest form
	} else if (frm.submit_type.value == "contest") {
		if (frm.name.value == frm.name.defaultValue) {
			msg += "Please enter your name.<br />";
		}
		if (frm.field_1.value == frm.field_1.defaultValue) {
			msg += "Please enter your beer name.<br />";
		}
		if (emailRX.test(frm.email.value) != true) {
			msg += "Please enter a valid email.<br />";
		}
		if (frm.birthdate.value == frm.birthdate.defaultValue) {
			msg += "Please enter your birth date.<br />";
		}
		if (frm.phone.value == frm.phone.defaultValue) {
			msg += "Please enter your phone number.<br />";
		}
		if (frm.address.value == frm.address.defaultValue) {
			msg += "Please enter your address.<br />";
		}
	}
	
	if(msg == "") {
		return true;
	} else {
		var messageID = "submit_message";
		document.getElementById(messageID).innerHTML = '<p>' + msg + '</p>';
		return false;
	}
}