[+] Install: new installer reworked from scratch

git-svn-id: http://dev.prestashop.com/svn/v1/branches/1.5.x@10056 b9a71923-0436-4b27-9f14-aed3839534dd

install-new/theme/js/welcome.js

@@ -0,0 +1,23 @@
+$(document).ready(function()
+{
+	// Submit change of language
+	$('#langList li input').click(function()
+	{
+		$('#mainForm').submit();
+	});
+	
+	// Desactivate next button if licence checkbox is not checked
+	if (!$('#set_license').attr('checked'))
+	{
+		$('#btNext').addClass('disabled').attr('disabled', true);
+	}
+	
+	// Activate / desactivate next button when licence checkbox is clicked
+	$('#set_license').click(function()
+	{
+		if ($(this).attr('checked'))
+			$('#btNext').removeClass('disabled').attr('disabled', false);
+		else
+			$('#btNext').addClass('disabled').attr('disabled', true);
+	});
+});