jQuery заменить innerhtml
$("#myID").html("<div>New inner html</div>"); //replace element innerHTML in jQuery
Grepper
$("#myID").html("<div>New inner html</div>"); //replace element innerHTML in jQuery.text() or .html()$("button").click(function(){
$("p").html("Hello <b>world</b>!");
});$(element).html("Hello World");$('#selector').text('Your text here');var itemtoReplaceContentOf = $('#regTitle');
itemtoReplaceContentOf.html('');
newcontent.appendTo(itemtoReplaceContentOf);