function echeck(str) {
	var at="@"
	var dot="."
	var lat=str.indexOf(at)
	var lstr=str.length
	var ldot=str.indexOf(dot)
	if (str.indexOf(at)==-1){
	   alert("Invalid E-mail ID")
	   return false
	}

	if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
	   alert("Invalid E-mail ID")
	   return false
	}

	if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		alert("Invalid E-mail ID")
		return false
	}

	 if (str.indexOf(at,(lat+1))!=-1){
		alert("Invalid E-mail ID")
		return false
	 }

	 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		alert("Invalid E-mail ID")
		return false
	 }

	 if (str.indexOf(dot,(lat+2))==-1){
		alert("Invalid E-mail ID")
		return false
	 }
	
	 if (str.indexOf(" ")!=-1){
		alert("Invalid E-mail ID")
		return false
	 }

	 return true					
}
function validate_form()
{
	if ( document.formEmailPage.txtFriendEmail.value == "" )
	{
		alert ( "Please fill in the 'Your Friend's Email Address' box." );
		return false;
	}
	var emailIDFriend=document.formEmailPage.txtFriendEmail
	
	if ((emailIDFriend.value==null)||(emailIDFriend.value=="")){
		alert("Please enter a valid Email Address.")
		emailIDFriend.focus()
		return false
	}
	if (echeck(emailIDFriend.value)==false){
		emailIDFriend.value=""
		emailIDFriend.focus()
		return false
	}

	if ( document.formEmailPage.txtName.value == "" )
	{
		alert ( "Please fill in the 'Your Name' box." );
		return false;
	}

	if ( document.formEmailPage.txtEmail.value == "" )
	{
		alert ( "Please fill in the 'Your Email Address' box." );
		return false;
	}
	var emailIDYour=document.formEmailPage.txtEmail
	
	if ((emailIDYour.value==null)||(emailIDYour.value=="")){
		alert("Please enter a valid Email Address.")
		emailIDYour.focus()
		return false
	}
	if (echeck(emailIDYour.value)==false){
		emailIDYour.value=""
		emailIDYour.focus()
		return false
	}

	if ( document.formEmailPage.txtMessage.value == "" )
	{
		alert ( "Please fill in the 'Your Message' box." );
		return false;
	}

}


function clearInput() {
	document.myForm.firstname.value = "";
	document.myForm.lastname.value = "";
	document.myForm.email.value = "";
	document.myForm.newServices.value = "";
	document.myForm.bodyTreatments.value = "";
	document.myForm.cosmeticSurgeryProcedures.value = "";
	document.myForm.facialProcedures.value = "";
	document.myForm.nonSurgical.value = "";
	document.myForm.laserLight.value = "";
	document.myForm.peels.value = "";
	document.myForm.other.value = "";
	document.myForm.message.value = "";
	document.myForm.security_code.value = "";
	document.myForm.subscribe.checked = "";
}