// extract filename and extension
function xtractFile(data){
	data = data.replace(/^\s|\s$/g, "");

    if (/\.\w+$/.test(data)) {
    	var m = data.match(/([^\/\\]+)\.(\w+)$/);
        if (m)
           	return {filename: m[1], ext: m[2]};
		else
           	return {filename: "no file name", ext:null};
	} else {
    	var m = data.match(/([^\/\\]+)$/);
       	if (m)
        	return {filename: m[1], ext: null};
        else
        	return {filename: "no file name", ext:null};
    }
}

// add commas to long numbers
function CommaFormatted(amount) {
	var delimiter = ","; // replace comma if desired
	var a = amount.split('.',2)
	var d = (typeof(a[1]) == 'undefined') ? '' : a[1];
	var i = parseInt(a[0]);
	if(isNaN(i)) { return ''; }
	var minus = '';
	if(i < 0) { minus = '-'; }
	i = Math.abs(i);
	var n = new String(i);
	var a = [];
	while(n.length > 3)
	{
		var nn = n.substr(n.length-3);
		a.unshift(nn);
		n = n.substr(0,n.length-3);
	}
	if(n.length > 0) { a.unshift(n); }
	n = a.join(delimiter);
	if(d.length < 1) { amount = n; }
	else { amount = n + '.' + d; }
	amount = minus + amount;
	return amount;
}