Using a text field instead of XML to grab data?

I’m trying to figure out how to eliminate the need for an external XML file with my SWF

Right now I have a SWF and an XML containing a few thousand lines, that are being grabbed using this AS

on (release) {
	if (_global.my_xml == null)
	{
		trace("my_xml is null")
	
		_global.my_xml = new XML();
		_global.my_xml.ignoreWhite = true;
		_global.my_xml.onLoad = function(success){
		if (success) 
		{ trace("successful"); 
				var stocklist = my_xml.firstChild.childNodes;
				trace("records found : " + stocklist.length);
				
					var found = false;
					for (var i = 0; i < stocklist.length; i++){
						var stockitem = stocklist*;
						if (act == stockitem.attributes.Customer_Number)
						{
							amt = stockitem.attributes.Revenue_Target;
							nam = stockitem.attributes.Customer_Name;
							net = stockitem.attributes.Ranging_Target;
							found = true;
						}
					}
					
					if (found == false)
					{
						amt = "not found";
						nam = "not found";
						net = "not found";
					}
		
		} 
		else trace("Error loading XML file"); // no success?  trace error (wont be seen on web)
		}

//		_global.my_xml.load("Customer_Target.xml");
	}
	else
	{
		trace("my_xml found")
		var stocklist = my_xml.firstChild.childNodes;
		var found = false;
		for (var i = 0; i < stocklist.length; i++){
			var stockitem = stocklist*;
			if (act == stockitem.attributes.Customer_Number)
			{
				amt = stockitem.attributes.Revenue_Target;
				nam = stockitem.attributes.Customer_Name;
				net = stockitem.attributes.Ranging_Target;
				found = true;
			}
		}
		
		if (found == false)
		{
			amt = "not found";
			nam = "not found";
			net = "not found";
		}
	}
}

I understand one way to do this is to throw all the XML data into actionscript, eg:

var my_xml = new XML("<CustomerDetails><Customer Customer_Number=\"1000\" Customer_Name=\"NAME\" Revenue_Target=\"$500,000.00\" Ranging_Target=\"1\" /></CustomerDetails>");

However there are formatting issues with this as well as it only being able to be read on one line.
I also understand there is a method to place all this data into a dynamic text field, and just call it from there. The problem is I’m not sure how to call data from a text field.

Was hoping someone could give some suggestions?