gistfile1.js

function urlParam(name, _default) {
		name = name.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]")
		var regexS = "[\\?&]" + name + "=([^&#]*)"
	  	var regex = new RegExp(regexS)
		var results = regex.exec(window.location.href)
	  	if (results == null) {
	    	return _default
		}
	  	else {
	    	return results[1]
		}
	}