Wordpress conditional metabox on checked category

conditional_metabox.js

jQuery(document).ready(function() {
	function metabox_category() {
		// conditional show/hide metaboxes on checked category
		var label = null;
		var onemeta = jQuery('#id_of_custommetabox.postbox');
		// get checked checkboxes
		var ischecked = jQuery('#taxonomy_name_categorychecklist input[type="checkbox"]:checked');
		var label = ischecked.parent().text().trim();
			//console.log(label);
			//console.log(ischecked.length);
			// hide metaboxes if nothing checked
		if (ischecked.length == 0){
	  		onemeta.hide(); 
		}
			// if needed label is in label string
		if (~label.indexOf("label_of_checkbox")){  // javascript tilde operator 
			onemeta.show('slow');
		} else {
			onemeta.hide('slow');
		}
	}
	jQuery('#taxonomy_name_categorychecklist input[type="checkbox"]').live('click', metabox_category); // calls the function on click of category checkbox
	metabox_category(); // calls the function on load
});

show/hide a metabox based on a category or custom taxonomy in WordPress admin