function contact_validation(){
	//alert('I am in!');
	//document.getElementById('error').style.display = 'none';
	//document.getElementById('success').style.display = 'none';
	
	var F_Name = trim(document.getElementById('f_name').value);
	var L_Name = trim(document.getElementById('l_name').value);
	var e_mail = trim(document.getElementById('e_mail').value);
	//var city = trim(document.getElementById('city').value);
	//var state = trim(document.getElementById('state').value);
	//var country = trim(document.getElementById('country').value);
	//var phone = trim(document.getElementById('phone').value);
	var comment = trim(document.getElementById('comment').value);
	
	
	if(F_Name==''||F_Name=='First name'){
		alert('Please enter your first name.');
		jQuery('#f_name').focus();
		return false;
	}
	else if(L_Name==''||L_Name=='Last name'){
		alert('Please enter your last name.');
		jQuery('#l_name').focus();
		return false;
	}
	/*else if(city==''||city=='City'){
		alert('Please enter your city.');
		jQuery('#city').focus();
		return false;
	}*/
	/*else if(state==''||state=='State'){
		alert('Please enter your state.');
		jQuery('#state').focus();
		return false;
	}*/
	/*else if(country==''||country=='Country'){
		alert('Please enter your country.');
		jQuery('#country').focus();
		return false;
	}*/
	/*else if(phone==''||phone=='Phone'){
		alert('Please enter your phone number.');
		jQuery('#phone').focus();
		return false;
	}*/
	else if(e_mail==''||e_mail=='E-Mail'){
		alert('Please provide a valid email address.');
		jQuery('#e_mail').focus();
		return false;
	}
	else if(comment==''||comment=='Comment'){
		alert('Please enter your comment.');
		jQuery('#comment').focus();
		return false;
	}
	else if( !checkEmail(e_mail) ){
		alert('Please provide a valid email address.');
		jQuery('#e_mail').focus();
		return false;
	}
	else
	return true;
	//send_ajax_mail(name, email, mess);
	
	
}
function ltrim(str) { 
	for(var k = 0; k < str.length && isWhitespace(str.charAt(k)); k++);
	return str.substring(k, str.length);
}
function rtrim(str) {
	for(var j=str.length-1; j>=0 && isWhitespace(str.charAt(j)) ; j--) ;
	return str.substring(0,j+1);
}
function trim(str) {
	return ltrim(rtrim(str));
}
function isWhitespace(charToCheck) {
	var whitespaceChars = " \t\n\r\f";
	return (whitespaceChars.indexOf(charToCheck) != -1);
}

function checkEmail(emial){
	var str=emial;
	var filter=/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i;
	if (filter.test(str))
		return true;
	else
		return false;
}