// JScript File

// 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 = 7;

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 test(rn,suff)
{
	var randomnumber=Math.floor(Math.random()*rn)
	if(randomnumber<1)
	{
		randomnumber=randomnumber+1;
	}
	var path="banners/"
	var s=".jpg"

	var tmp= path.toString()+suff.toString()+randomnumber.toString()+s.toString()
	var img = document.getElementById('pic');
	img.src=tmp
}

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 ExtensionsOkay(val) 
{
	var extension = new Array();
	
	var fieldvalue = document.enquiry.attachment.value;

	if(val==null)
	{
		extension[0] = ".doc";
		extension[1] = ".xls";
		extension[2] = ".pdf";
		extension[3] = ".docx";
		extension[4] = ".xlsx";
	}
	else
	{
		extension[0] = ".doc";
		extension[1] = ".docx";
		extension[2] = ".pdf";
	}

	if(fieldvalue=="")
	{
		document.getElementById("fileError").style.display = "none";
		return true; 
	}

	// No other customization needed.
	var thisext = fieldvalue.substr(fieldvalue.lastIndexOf('.'));
	for(var i = 0; i < extension.length; i++)
	{
		if(thisext == extension[i])
		{
			document.getElementById("fileError").style.display = "none";
			return true; 
		}
	}
	document.getElementById("fileError").style.display = "block";
	return false;
}