Call tracking callback and call, for port to GTM

new_gist_file_0.js

//
// this is the callback function
//
var NumToReplacePretty;
var NumToReplace;
		
var callback = function(formatted_number, mobile_number) {
		console.log("Call tracking callback fired!");
		console.log("formatted #:"+formatted_number);
		console.log("mobile #:"+mobile_number);
		
		var pretty = "("+formatted_number.substr(0, 3) + ') ' + formatted_number.substr(3, 3) + '-' + formatted_number.substr(6,4)
		updateMapNumber(pretty); // call setter for the number used in the map infobox
		
	jQuery("a[href^='tel']").each(function(){
		var replaceStr = jQuery(this).html();
		var prettyString = "("+formatted_number.substr(0, 3) + ') ' + formatted_number.substr(3, 3) + '-' + formatted_number.substr(6,4)
		replaceStr = replaceStr.replace(NumToReplacePretty, prettyString);
		jQuery(this).html(replaceStr);
		jQuery(this).attr("href","tel"+mobile_number);
		
		jQuery(this).click(function(){
			dataLayer.push({
					'event' :	'endaiGAevent',
					'eventCategory' : "Main",
					'eventAction' : "click on "+replaceStr	
				});
		});
		
	});
};

//
// This is the actual call to the google # replacement script- we use jQuery to find to number to replace, then pass that number and the callback to  google. In GTM it might need a different trigger than window.onload? 
//
window.onload = function() {
	console.log("numToReplace:"+jQuery("a[href^='tel']").first().attr("href"));
	NumToReplacePretty = jQuery("a[href^='tel']").first().attr("href").substring(4);
	NumToReplace = NumToReplacePretty.replace(/[^\d\+]/g,"");
	_googWcmGet( callback, NumToReplace );
};