function getScriptTag() {
		var oScript,
			aScripts = document.getElementsByTagName("script"),
			i, n;

		for (i = 0, n = aScripts.length; i < n; i += 1) {
			oScript = aScripts[i];

			if (/BranchTracking.js$/.test(oScript.getAttribute("src"))) {
				return oScript;
			}
		}
	}
Determines the script tag that loaded this script.

@return {Element}
  The script tag that loaded this script