function javascriptError(){
	alert("\nThere was a browser error.  Click the refresh button and be sure to let the page load completely before continuing.ck");
	return true;
}

function CheckEmail() {
	if (document.modelform.email.value) {
		if (document.modelform.email.value.indexOf("@") <= 0 ||
			 document.modelform.email.value.indexOf(".") <= 0 ||
			 document.modelform.email.value == "") {
			    alert("Invalid email address");
			    return false;
		}
	} else {
		alert("Email address is missing");
		return false;	
	}

	return true;	
}

function btnSubmit_OnClick() {
   var bFlag=CheckEmail();
	if (bFlag) document.modelform.submit();
}