//Check Contact Us Page

// 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 checkForm()
{
x=/ /g;
			
	if((document.contact.txtName.value.replace(x,"")) == "" || (document.contact.txtName.value) == "your name")
	{
		alert("Please enter your name.")
		document.contact.txtName.value = "";		
		document.contact.txtName.focus();
		return false;
	}
		 
	if((document.contact.txtEmail.value.replace(x,"")) == "" || (document.contact.txtEmail.value) == "e-mail")
	{
		alert("Please enter your email.")
		document.contact.txtEmail.value = "";		
		document.contact.txtEmail.focus();
		return false;
	}
	else
	if (document.layers||document.getElementById||document.all)
	{
		var str=document.contact.txtEmail.value
		var filter=/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i
		if (!filter.test(str))
		{
			alert("Please enter a valid email.")
			document.contact.txtEmail.value=""
			document.contact.txtEmail.focus()
			return false
		}
	}
	
	/*if((document.contact.txtContact.value.replace(x,"")) == "" || (document.contact.txtContact.value) == "phone")
	{
		alert("Please enter contact number.")
		document.contact.txtContact.value = "";		
		document.contact.txtContact.focus();
		return false;
	}*/
	
	var Phone=document.contact.txtContact.value
	
	if ((document.contact.txtContact.value==null) || (document.contact.txtContact.value=="") || (document.contact.txtContact.value=="phone")){
		alert("Please Enter your Phone Number")
		document.contact.txtContact.value=""		
		document.contact.txtContact.focus()
		return false
	}
	if (checkInternationalPhone(document.contact.txtContact.value)==false){
		alert("Please Enter a Valid Phone Number")
		document.contact.txtContact.value=""
		document.contact.txtContact.focus()
		return false
	}

	if((document.contact.message.value.replace(x,"")) == "" || (document.contact.message.value) == "comments")
	{
		alert("Please type some message.")
		document.contact.message.value = "";		
		document.contact.message.focus();
		return false;
	}		
	return true;
}