trying to replace href

replace href.js (dont work)

<script>
$(function () {
	var terms = {
			"email": { 	//set your term name
				"default": "" //set your default value
			}, //don't forget commas to separate terms
			"aff_sub": {
				"default": "not given"	
			}
		};
	$.each(terms,function (name, settings) {
		var value = getURLParameter(name);
		var regex = new RegExp("\\{\\{"+name+"\\}\\}","g");
		if (!value || value == "null") {
			value = settings.default;
		}
		$(".elButton:contains('{{"+name+"}}'), .elTextblock:contains('{{"+name+"}}'), .elHeadline:contains('{{"+name+"}}'), .elBullet:contains('{{"+name+"}}')").each(function() {
			var replaced = $(this).href().replace(regex, value);
			$(this).href(replaced);
		});
	});
});
</script>

replace href.js (working for <p>)

<script>
$(function () {
	var terms = {
			"email": { 	//set your term name
				"default": "" //set your default value
			}, //don't forget commas to separate terms
			"aff_sub": {
				"default": "not given"	
			}
		};
	$.each(terms,function (name, settings) {
		var value = getURLParameter(name);
		var regex = new RegExp("\\{\\{"+name+"\\}\\}","g");
		if (!value || value == "null") {
			value = settings.default;
		}
		$(".elButton:contains('{{"+name+"}}'), .elTextblock:contains('{{"+name+"}}'), .elHeadline:contains('{{"+name+"}}'), .elBullet:contains('{{"+name+"}}')").each(function() {
			var replaced = $(this).html().replace(regex, value);
			$(this).html(replaced);
		}); 
		$(".elButton:contains('{{"+name+"}}')").each(function() {  // this does not work as I thought 
			var replaced = $(this).href().replace(regex, value);
			$(this).href(replaced); 
		});
	});
});
</script>