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("That is not a valid e-mail address.")
	   return false
	}

	if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
	   alert("That is not a valid e-mail address.")
	   return false
	}

	if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==(lstr-1) || str.indexOf(dot)==(lstr-2)){
		alert("That is not a valid e-mail address.")
		return false
	}

	 if (str.indexOf(at,(lat+1))!=-1){
		alert("That is not a valid e-mail address.")
		return false
	 }

	 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		alert("That is not a valid e-mail address.")
		return false
	 }

	 if (str.indexOf(dot,(lat+2))==-1){
		alert("That is not a valid e-mail address.")
		return false
	 }
	
	 if (str.indexOf(" ")!=-1){
		alert("That is not a valid e-mail address.")
		return false
	 }
	 return true

}

function ValidateSignUp(){
	var first_name=document.actionform.First_Name
	var last_name=document.actionform.Last_Name
	var email=document.actionform.email
	var word=document.actionform.word
	
	if ((first_name.value==null)||(first_name.value=="")){
		alert("Please enter your first name.")
		first_name.focus()
		return false
	}
	else if ((last_name.value==null)||(last_name.value=="")){
		alert("Please enter your last name.")
		last_name.focus()
		return false
	}

	else if ((email.value==null)||(email.value=="")){
		alert("Please enter your e-mail address.")
		email.focus()
		return false
	}

	if (echeck(email.value)==false){
	email.value=""
	email.focus()
	return false
	}

	if ((word.value==null)||(word.value=="")){
		alert("You must type the validation word to submit the form.")
		word.focus()
		return false
	}

	else
	{
	return true
	}
}