Today it is fashionable to store HTML in JavaScript? MVC already invented?

JavaScript Micro-Templating by John Resiga.

closure templates is very suggest. Working in several military projects. Hosted on code.google.com the exact link can give when at the computer I will :-)

there are also XML+XSLT

I also often face this issue.
chose for himself three approaches:
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1. if you wish to generate a little code, something itrade a text box with the label, using jquery: $("...).after(...). Convenient because you can brashirovanie links to the items, which are then hung obrabotkami events, etc.
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2. structure can be a little more complicated, but not much, to complain about $.nano is an excellent plugin and very small. I even like how it is written. However there are limitations — the arrays of values, but
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3. If big data is to render a go between the client and the server, I've been here the entire HTML generated on the server, and then it is inserted. The fact that I believe that the site still needs to be able to work without JS (this is a separate question — why). So if JS for some reason doesn't work comes a normal page. The server decides, depending on ajax or naaah the request comes and gives either full page or piece. By the way, helps ajaxify jquery plugin

I do not recommend to use xml+xslt all browsers on a miscellaneous perceive it.
Tested on my own skin. It is very hard to debug errors.

Just finished a big project, which for such purposes used EJS (openarena javascript template library). You can make templates with quite sophisticated logic.

My advice to You is not wise with template engines for JS. If it is necessary for the template to propagate a piece of code, for example, for the table data — make it hidden class template. Tags, which are necessary to substitute the values also provide the relevant classes, for example: cell-name cell-price, etc. and substitute in them the values. This way you kill several birds with one stone (the substitution of values, the definition of handlers, convenient debugging, etc.) using simple tools.