// JavaScript Document
<!--
/**
 * 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 = 5;

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 checkPhone(phone){
	
	if ((phone==null)||(phone=="")){
		//alert("Please Enter your Phone Number")
		//Phone.focus()
		return false
	}
	if (checkInternationalPhone(phone)==false){
		//alert("Please Enter a Valid Phone Number")
		//Phone.value=""
		//Phone.focus()
		return false
	}
	return true
 }
 
 
/* ------------------------------------ */
 
function validate_required(field,alerttxt) {
	with (field) {
		if (value==null||value==""||value=="0")	{alert(alerttxt);return false;}
		else {return true}
	}
}

function validate_email(field,alerttxt) {
	with (field) {
		apos=value.indexOf("@");
		dotpos=value.lastIndexOf(".");
		if (apos<1||dotpos-apos<2) {alert(alerttxt);return false;}
		else {return true;}
	}
}

function validate_phone(field,alerttxt) {
	with (field) {
		if (checkPhone(value)==false) {alert(alerttxt);return false;}
		else {return true}
	}
}

//--------------------------------------------------//

function resetAll(targetid) {
	with (document.getElementById(targetid)) {
		company_name.style.background='#4f616f';
		last_name.style.background='#4f616f';
		email.style.background='#4f616f';
		telephone.style.background='#4f616f';
		business.style.background='#4f616f';
		country.style.background='#4f616f';
		demand.style.background='#4f616f';
		reset();
	}
}

function async_validate_required(field) {
	with (field) {
		if(value==null||value==""||value=="0") {
			//field.focus();
			field.style.background='#C89A2A';
		}
		else {field.style.background='#4f616f';}
	}
}

function async_validate_email(field) {
	with(field) {
		apos=value.indexOf("@");
		dotpos=value.lastIndexOf(".");
		if (value==null||value==""||apos<1||dotpos-apos<2) {
			//field.focus();
			field.style.background='#C89A2A';
		}
		else {field.style.background='#4f616f';}
	}
}

function async_validate_phone(field) {
	with (field) {
		//if (value==null||value==""||parseInt(field.value)!=field.value ) {
		if (checkPhone(value)==false) {
			//field.focus();
			field.style.background='#C89A2A';
		}
		else {field.style.background='#4f616f';}
	}
}
-->