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

// Declaring required variables
var digits = "0123456789";
// non-digit characters which are allowed in phone numbers
var phoneNumberDelimiters = "()- ";
// characters which are allowed in international phone numbers
// (a leading + is OK)
var validWorldPhoneChars = phoneNumberDelimiters + "+";
// Minimum no of digits in an international phone no.
var minDigitsInIPhoneNumber = 10;

function isInteger(s)
{   var i;
    for (i = 0; i < s.length; i++)
    {   
        // Check that current character is number.
        var c = s.charAt(i);
        if (((c < "0") || (c > "9"))) return false;
    }
    // All characters are numbers.
    return true;
}
function trim(s)
{   var i;
    var returnString = "";
    // Search through string's characters one by one.
    // If character is not a whitespace, append to returnString.
    for (i = 0; i < s.length; i++)
    {   
        // Check that current character isn't whitespace.
        var c = s.charAt(i);
        if (c != " ") returnString += c;
    }
    return returnString;
}
function stripCharsInBag(s, bag)
{   var i;
    var returnString = "";
    // Search through string's characters one by one.
    // If character is not in bag, append to returnString.
    for (i = 0; i < s.length; i++)
    {   
        // Check that current character isn't whitespace.
        var c = s.charAt(i);
        if (bag.indexOf(c) == -1) returnString += c;
    }
    return returnString;
}

function checkInternationalPhone(strPhone){
var bracket=3
strPhone=trim(strPhone)
if(strPhone.indexOf("+")>1) return false
if(strPhone.indexOf("-")!=-1)bracket=bracket+1
if(strPhone.indexOf("(")!=-1 && strPhone.indexOf("(")>bracket)return false
var brchr=strPhone.indexOf("(")
if(strPhone.indexOf("(")!=-1 && strPhone.charAt(brchr+2)!=")")return false
if(strPhone.indexOf("(")==-1 && strPhone.indexOf(")")!=-1)return false
s=stripCharsInBag(strPhone,validWorldPhoneChars);
return (isInteger(s) && s.length >= minDigitsInIPhoneNumber);
}

function ValidatePhone(thisform){
	with(thisform){
		if ((Phone.value==null)||(Phone.value=="")){
			//alert("Please Enter your Phone Number");
			Phone.focus();
			return false;
		}
		if (checkInternationalPhone(Phone.value)==false){
			//alert("Please Enter a Valid Phone Number");
			Phone.value="";
			Phone.focus();
			return false;
		}
		return true;
	}
 }
 
function showVideo(id, no, video_count) {
	// hide all first
	vcount = video_count + 1;
	for (i = 1; i < vcount; i++) {
		var lastSlot = document.getElementById("v_"+id+"_"+i);			// hide all inactive videos
		lastSlot.style.display = "none";								
	}
	var video_no = no;														// set current slide no
	var vHolder = document.getElementById("video_holder_"+id);				// set holder div
	var vSlot = document.getElementById("v_"+id+"_"+no);					// set video div
	vHolder.style.display = "inline";
	vSlot.style.display = "inline";
}

function isZip(s) {
	// Check for correct zip code
	reZip = new RegExp(/(^\d{5}$)|(^\d{5}-\d{4}$)/);
	if (!reZip.test(s)) {
		return false;
	}
	return true;
}

function checkBasicForm() {
	var err = 0;
	var err_txt = "";
	var msg_txt = "";
	var intro_msg = "\n\rThe following information is required: ";
	if (document.regForm.First.value == "") {
		err++;
		msg_txt += "\n\r\tFirst name";
	}
	if (document.regForm.Last.value == "") {
		err++;
		msg_txt += "\n\r\tLast name";
	}
	if (document.regForm.Company.value == "") {
		err++;
		msg_txt += "\n\r\tOrganization/Company";
	}
	if (document.regForm.Title.value == "") {
		err++;
		msg_txt += "\n\r\tTitle";
	}
	if (document.regForm.Email.value == "") {
		err++;
		msg_txt += "\n\r\tEmail Address";
	}
	if (err > 0) {
		if (msg_txt != "") {
			err_txt = intro_msg+msg_txt+"\n\r"+err_txt;
		}
		alert(err_txt);
		return false;
	}  else {
		return true;
	}
}

function checkArtForm() {
	var err = 0;
	var err_txt = "";
	var msg_txt = "";
	var intro_msg = "\n\rThe following information is required: ";
	if (document.artform.FirstName.value == "" ) {
		err++;
		msg_txt += "\n\r\tFirst name";
	}
	if (document.artform.LastName.value == "" ) {
		err++;
		msg_txt += "\n\r\tLast name";
	}
	if (document.artform.email.value == "" ) {
		err++;
		msg_txt += "\n\r\tEmail address";
	}
	if (document.artform.Title.value == "" ) {
		err++;
		msg_txt += "\n\r\tTitle";
	}
	if (document.artform.Company.value == "" ) {
		err++;
		msg_txt += "\n\r\tCompany";
	}
	if (err > 0) {
		if (msg_txt != "") {
			err_txt = intro_msg+msg_txt+"\n\r"+err_txt;
		}
		alert(err_txt);
		return false;
	}  else {
		return true;
	}
}