/**
 * DHTML email validation script. Courtesy of SmartWebby.com (http://www.smartwebby.com/dhtml/)
 */

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

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

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

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

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

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

	if (str.indexOf(" ")!=-1){
		if(debug == true) alert("Invalid E-mail");
		return false;
	}

	return true	;				
}

function ValidateForm(){
	var email = document.contactForm.email;
	var firstname = document.contactForm.firstname;

	if ( email.value == null || email.value == "" || echeck(email.value) == false ){
		alert("Please Enter a Valid Email Address");
		email.focus();
		return false;
	}

	if ( firstname.value == null || firstname.value == "" ){
		alert("Please Enter your Name");
		firstname.focus();
		return false;
	}

	return true;
}