[ajax] refactor/cleanup low-level ajax functions
* loadxhtml/replacePageChunck/reload_component/reload_box deprecated in favor of loadXHTML / ajaxFuncArgs
* some other cleanups in cubicweb.ajax.js
* add js_render which will replace js_component (more generic, nicer argument passing handling)
function load_now(eltsel, holesel, reloadable) {
var lazydiv = jQuery(eltsel);
var hole = lazydiv.children(holesel);
if ((hole.length == 0) && ! reloadable) {
/* the hole is already filled */
return;
}
lazydiv.loadxhtml(lazydiv.attr('cubicweb:loadurl'));
}
function trigger_load(divid) {
jQuery('#lazy-' + divid).trigger('load_' + divid);
}