function IsValidEmail(s) {
  	var pattern = /^[0-9A-Za-z_-]+(\.[0-9A-Za-z_-]+)*@[0-9A-Za-z_-]+\.[0-9A-Za-z_-]+(\.[0-9A-Za-z_-]+)*$/;
	if (!pattern.test(s)) {
	   alert("The Email Address is not valid");
	   return false;
	}
	else {
		return true;
	}
}

function trim(string) {
	return(string.replace(/^\s*|\s*$/g,""));
}

var alreadySubmitted=false;;

function checkFormEmail() {
	//prevent duplicate submission
	if (alreadySubmitted) {
		alert("Your transaction is being processed.\n\nPlease wait.");
		return false;
	}

	var frm=document.formEmail;

	if (frm.email.value == '') {
		frm.email.focus();
		alert('Please enter your Email address');
		return false
	}
	else {
		if (!IsValidEmail(frm.email.value)) {
			frm.email.focus();
			return false;
		}
	}
	
	// If we get this far, all validation has passed
	alreadySubmitted = true;
	return true;

}

function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

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_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_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];}
}