(function(){
	var $s = document.selection;

	var RowExpansion = function(){
		var _isTarget = function(txt){
			var reg = new RegExp("\r\n");
			return txt.match(reg);
		}
		
		var _exp = function(txt){
			var reg = new RegExp("\r\n");
			var ret = txt;
			while(ret.match(reg)){
				ret = ret.replace(/\r\n/m, "\t");
			}
			return ret;
		}
		
		return {
			isTarget : _isTarget,
			exp : _exp
		}
	}

	var ColExpansion = function(){
		var _isTarget = function(txt){
			var reg = new RegExp("[,\t]");
			return txt.match(reg);
		}
		
		var _exp = function(txt){
			var reg = new RegExp("[,\t]");
			var ret = txt;
			while(ret.match(reg)){
				ret = ret.replace(/[,\t]/m, "\r\n");
			}
			return ret;
		}
		
		return {
			isTarget : _isTarget,
			exp : _exp
		}
	}
	
	var expProcs = [new RowExpansion(), new ColExpansion()];
	
	for(var i=0;i<expProcs.length;i++){
		var selText = $s.Text;
		if(!expProcs[i].isTarget(selText))
			continue;
		$s.Text = expProcs[i].exp(selText);
		break;
	}
})();