//-------------------------------- Function to count the number of messages and characters in sms text typed by user --------------------

function countCharacters_Templates(charcount,smscount)
{



	var valueofmessage = document.templateform.smsmessagebox.value;

	var lengthofmessage = document.templateform.smsmessagebox.value.length;
			
	var numberofenterkeys = CountEnterKey_Templates(valueofmessage); 		// javascript treats carriage return as 2 chars but we have to treat is as 1 therefore, no. of carriage returns(1) is subtracted from fulllength(2)

	var actualmessagelength=document.templateform.actuallength.value;			// will hold actual message length with carriage return counted as 2

	lengthofmessage = lengthofmessage - numberofenterkeys;
	
	if(lengthofmessage>765)
	{
		alert("Maximum Length is Reached");
		TruncateExtraText_Templates(actualmessagelength);
	}
	else
	{	
		actualmessagelength = lengthofmessage + numberofenterkeys;
		document.templateform.actuallength.value = actualmessagelength;
	

	
		var remchar = 765 - lengthofmessage;
	
		var numofsms=0;
		if(lengthofmessage > 160)
		{
			if((lengthofmessage % 153) ==0)				// sms length in multiples of 153
			numofsms = (lengthofmessage / 153);
			else									// sms length not in multiples of 153 and remainder is present therefore increase sms count by 1
			numofsms = (parseInt(lengthofmessage / 153)) + 1;
		}
	
		else if((lengthofmessage > 0) && (lengthofmessage <= 160))
		{
			numofsms=1;				// sms less that 160 chars therefore sms count is only 1
		}
	
		document.templateform.charcount.value = lengthofmessage;
		document.templateform.remcharcount.value = remchar;
		document.templateform.smscount.value = numofsms;
		document.templateform.numsms.value = numofsms;
		
		var numberofrecipients = document.templateform.numrecipients.value;
		document.templateform.totalsms.value = numberofrecipients * numofsms;
	}
	
}



//-------------------- Returns no. of carriage returns in a message / string ----------------------
function CountEnterKey_Templates(message)
{

var len = message.length;	
var counter=0;

for(var i=0;i<len;i++)
	{
		var c= message.charCodeAt(i);
		if(c==13)				// 13 and 10 both values are printed when a carriage return is encountered
		counter++;
		

	}

return counter;

}
//--------------------------------- Trucates extra text entered in message text area -----------------------------

function TruncateExtraText_Templates(actualmessagelength)
{
	var valueofmessage = document.templateform.smsmessagebox.value;

	valueofmessage = valueofmessage.substring(0,actualmessagelength);
	
	document.templateform.smsmessagebox.value = valueofmessage;
	
	
}