/*contactus form check*/
function SubmitAdvertiser( ){
	var _email = document.getElementById('email');
	var _lname = document.getElementById('lname');
	var _fname = document.getElementById('fname');
	var _phone = document.getElementById('phone');


	if(!MandatoryCheck(_fname) || _fname.value.length < 2){
		alert(err_messages_stack['fname_validity']);
        return false;
	}
	if(!MandatoryCheck(_lname) || _lname.value.length < 2){
		alert(err_messages_stack['lname_validity']);
        return false;
	}
	if(_phone.value.length>0) {
		if(!PhoneCheck(_phone)){
			alert(err_messages_stack['phone_validity']);
	        return false;
		}
	}
	if(!MandatoryCheck(_email) || !EmailCheck(_email)){
		alert(err_messages_stack['email_validity']);
        return false;
	}

	return true;
}

function externalLinks( ) {
	 if (!document.getElementsByTagName) return;
	 var anchors = document.getElementsByTagName("a");
	 for (var i=0; i<anchors.length; i++) {
	   var anchor = anchors[i];
	   if (anchor.getAttribute("href") &&
	       anchor.getAttribute("rel") == "external")
	     anchor.target = "_blank";
	 }
}

function check_hostname( _url ){
	if(window.location.hostname.match(/[a-zA-Z]+\.dev$/)){
		var _host_arr = window.location.hostname.split(/\./);
		_url = _url + '.' + _host_arr[2] + '.dev';
	}
	else if(window.location.hostname.match(/^devel\.www\./))
		_url = 'devel.www.' + _url;
	else if(window.location.hostname.match(/^qa\.www\./))
		_url = 'qa.www.' + _url;
	else if(window.location.hostname.match(/^stage\.www\./))
		_url = 'stage.www.' + _url;

	return _url;
}

function PhoneCheck(_elm){
	reg = new RegExp(/^[0-9\+\-\s]+$/);
	return reg.exec(_elm.value) != null;
}

function MandatoryCheck(_elm){
	return trim(_elm.value) != '';
}

function EmailCheck(_elm){
	reg = new RegExp(/^([\w]+){2,}(\.[\w]+)*@([\w\-]+){2,}(\.[\w]{2,7})(\.[a-zA-Z]{2})?$/);
	return reg.exec(_elm.value) != null;
}

function TermsCheck(_elm){
	return _elm.type == "checkbox" ? _elm.checked : true;
}

/*trim functions*/
/*left trim*/
function ltrim(_string){
	return _string.replace(/^\s+/,"");
}

/*right trim*/
function rtrim(_string){
	return _string.replace(/\s+$/,"");
}
/*trim all*/
function trim(_string){
	return _string.replace(/^\s+|\s+$/g,"");
}