var NEWLINE = "\n";


function validateCaptcha(form) {
	return true;
}

function validateContactForm(form) {
	var errors = "";

	if( form.Industry.options[0].selected) {		
		errors += "Please select an Industry (or select Other)." + NEWLINE;
	}
	if( form.How_Did_You_Hear.options[0].selected) {		
		errors += "Please select an option for \"How did you hear about us?\"" + NEWLINE;
	}
	if (isBlank(form.Name.value)) {
		errors += "Please enter your name." + NEWLINE;
	}
	if (isBlank(form.Company.value)) {
		errors += "Please enter your company name." + NEWLINE;
	}
	if (isBlank(form.Title.value)) {
		errors += "Please enter your title." + NEWLINE;
	}
	if (isBlank(form.email.value)) {
		errors += "Please enter E-mail address." + NEWLINE;
	}
	else if (echeck(form.email.value)==false){
		errors += "Invalid Email format. Please correct the e-mail address." + NEWLINE;
	}
	if( form.Country.options[0].selected) {		
		errors += "Please select your country." + NEWLINE;
	}

	return checkErrors(errors);
}

function validateMailForm(form) {
	var errors = "";

	if (isBlank(form.Company.value)) {
		errors += "Please enter your company name." + NEWLINE;
	}
	if (isBlank(form.Title.value)) {
		errors += "Please enter your title." + NEWLINE;
	}
	if (isBlank(form.First_Name.value)) {
		errors += "Please enter your first name." + NEWLINE;
	}
	if (isBlank(form.Last_Name.value)) {
		errors += "Please enter your last name." + NEWLINE;
	}
	if (isBlank(form.email.value)) {
		errors += "Please enter E-mail address." + NEWLINE;
	}
	else if (echeck(form.email.value)==false){
		errors += "Invalid Email format. Please correct the e-mail address." + NEWLINE;
	}
	if( form.Country.options[0].selected) {		
		errors += "Please select your country." + NEWLINE;
	}

	return checkErrors(errors);
}


function trim(inputString) {
	if (typeof inputString != "string") { return inputString; }
	var retValue = inputString;
	var ch = retValue.substring(0, 1);
	while (ch == " ") { 
		retValue = retValue.substring(1, retValue.length);
		ch = retValue.substring(0, 1);
	}
	ch = retValue.substring(retValue.length-1, retValue.length);
	while (ch == " ") { 
		retValue = retValue.substring(0, retValue.length-1);
		ch = retValue.substring(retValue.length-1, retValue.length);
	}
	while (retValue.indexOf("  ") != -1) { 
		retValue = retValue.substring(0, retValue.indexOf("  ")) + retValue.substring(retValue.indexOf("  ")+1, retValue.length);
	}
	return retValue; 
}
 
function isBlank(field) {
	if (trim(field).length == 0) {
		return true;
	}
	return false
}

function checkErrors(errors) {
	if (errors.length > 0 ) {
		alert("Please correct the following errors and click the Submit button: " + "\n" + "\n" + errors);
		return false;
	} else {
		return true;
	}
}

function setCancel() {
	cancel = true;
}

function IsNumeric(strString) {
	//  check for valid numeric strings
	var strValidChars = "0123456789.-";
	var strChar;
	var blnResult = true;

	if (strString.length == 0) return false;

	//  test strString consists of valid characters listed above
	for (i = 0; i < strString.length && blnResult == true; i++) {
		strChar = strString.charAt(i);
		if (strValidChars.indexOf(strChar) == -1) {
			blnResult = false;
		}
	}
	return blnResult;
}

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){
		return false
	}
	if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		return false
	}
	if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		return false
	}
	if (str.indexOf(at,(lat+1))!=-1){
		return false
	}
	if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		return false
	}
	if (str.indexOf(dot,(lat+2))==-1){
		return false
	}
	if (str.indexOf(" ")!=-1){
		return false
	}
	return true					
}
function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		navbar_services_over = newImage("../images/navbar_services-over.gif");
		navbar_resources_over = newImage("../images/navbar_resources-over.gif");
		navbar_newsevents_over = newImage("../images/navbar_newsevents-over.gif");
		navbar_aboutus_over = newImage("../images/navbar_aboutus-over.gif");
		navbar_careers_over = newImage("../images/navbar_careers-over.gif");
		resources_bar_email_over = newImage("../images/resources_bar_email-over.gif");
		resources_bar_cases_over = newImage("../images/resources_bar_cases-over.gif");
		resources_bar_articles_over = newImage("../images/resources_bar_articles-over.gif");
		resources_bar_insights_over = newImage("../images/resources_bar_insights-over.gif");
		lnav_svcs_hdr_over = newImage("../images/lnav_svcs_hdr-over.gif");
		lnav_svcs_netplan_over = newImage("../images/lnav_svcs_netplan-over.gif");
		lnav_svcs_nettools_over = newImage("../images/lnav_svcs_nettools-over.gif");
		lnav_svcs_siteopt_over = newImage("../images/lnav_svcs_siteopt-over.gif");
		lnav_svcs_sitetools_over = newImage("../images/lnav_svcs_sitetools-over.gif");
		lnav_svcs_custrel_over = newImage("../images/lnav_svcs_custrel-over.gif");
		lnav_svcs_custtools_over = newImage("../images/lnav_svcs_custtools-over.gif");
		lnav_about_hdr_over = newImage("../images/lnav_about_hdr-over.gif");
		lnav_about_vision_over = newImage("../images/lnav_about_vision-over.gif");
		lnav_about_history_over = newImage("../images/lnav_about_history-over.gif");
		lnav_about_ourteam_over = newImage("../images/lnav_about_ourteam-over.gif");
		lnav_about_clients_over = newImage("../images/lnav_about_clients-over.gif");
		lnav_about_locations_over = newImage("../images/lnav_about_locations-over.gif");
		lnav_about_contact_over = newImage("../images/lnav_about_contact-over.gif");
		lnav_crs_hdr_over = newImage("../images/lnav_crs_hdr-over.gif");
		lnav_crs_training_over = newImage("../images/lnav_crs_training-over.gif");
		lnav_crs_world_over = newImage("../images/lnav_crs_world-over.gif");
		lnav_crs_opportunities_over = newImage("../images/lnav_crs_opportunities-over.gif");
		lnav_crs_compensation_over = newImage("../images/lnav_crs_compensation-over.gif");
		lnav_news_hdr_over = newImage("../images/lnav_news_hdr-over.gif");
		lnav_news_calendar_over = newImage("../images/lnav_news_calendar-over.gif");
		lnav_news_releases_over = newImage("../images/lnav_news_releases-over.gif");
		lnav_news_archives_over = newImage("../images/lnav_news_archives-over.gif");
		lnav_news_media_over = newImage("../images/lnav_news_media-over.gif");
		lnav_rcs_hdr_over = newImage("../images/lnav_rcs_hdr-over.gif");
		lnav_rcs_cases_over = newImage("../images/lnav_rcs_cases-over.gif");
		lnav_rcs_articles_over = newImage("../images/lnav_rcs_articles-over.gif");
		lnav_rcs_insights_over = newImage("../images/lnav_rcs_insights-over.gif");
		lnav_rcs_testimonials_over = newImage("../images/lnav_rcs_testimonials-over.gif");
		lnav_info_sitemap_over = newImage("../images/lnav_info_sitemap-over.gif");
		lnav_info_contactus_over = newImage("../images/lnav_info_contactus-over.gif");
		lnav_info_mailinglist_over = newImage("../images/lnav_info_mailinglist-over.gif");
		lnav_info_privacy_over = newImage("../images/lnav_info_privacy-over.gif");
		lnav_info_search_over = newImage("../images/lnav_info_search-over.gif");
		preloadFlag = true;
	}
}