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// -*-javascript-*-

function ifnotempty(value, sep){
    return value.length > 0 ? value + sep : '';
}
 
function ifnotempty2(value1, value2, sep){
    return value1.length > 0 ? value1 + sep :value2.length > 0 ? value2 + sep:'' ;
}

function pad(number, length) {
	if (number === '') { return '';} 
	var str = '' + number; 
	while (str.length < length) {  
		str = '0' + str;
	}
	return str;
}