Preview:
function nubmerFormat(amount){

		var formatted;
		var ret_amt;
		var amt = amount;
	
		if(typeof amount == 'number'){  
			amt = amount.toString();
		}
	
		if(amt.length <= 3)
		{
			formatted = amt;
			amt = '';
		}
		else if(amt.length == 4)
		{
			formatted = amt.substr(0,1) + ",";
			amt = amt.substr(1);
		}
		else if(amt.length == 5)
		{
			formatted = amt.substr(0,2) + ",";
			amt = amt.substr(2);
		}
		else if(amt.length == 6)
		{
			formatted = amt.substr(0,1) + ",";
			formatted += amt.substr(1,2) + ",";
			amt = amt.substr(3);
		}
		else if(amt.length == 7)
		{
			formatted = amt.substr(0,2) + ",";
			formatted += amt.substr(2,2) + ",";
			amt = amt.substr(4);
		}
		else if(amt.length == 8)
		{
			formatted = amt.substr(0,1) + ",";
			formatted += amt.substr(1,2) + ",";
			formatted += amt.substr(3,2) + ",";
			amt = amt.substr(5);
		}
		else if(amt.length == 9)
		{
			formatted = amt.substr(0,2) + ",";
			formatted += amt.substr(2,2) + ",";
			formatted += amt.substr(4,2) + ",";
			amt = amt.substr(6);
		}
		else if(amt.length == 10)
		{
			formatted = amt.substr(0,3) + ",";
			formatted += amt.substr(3,2) + ",";
			formatted += amt.substr(5,2) + ",";
			amt = amt.substr(7);
		}
		
		ret_amt = formatted + amt;
		// ret_amt = formatted + amt + ".00";
		// console.log(ret_amt);
		return ret_amt;
		 
	}
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