var textbox = document.getElementById('q');
var filters = document.getElementById('search-filters');

var metarx = new RegExp(/\bmeta:"(.*?)"/);

while(match = metarx.exec(textbox.value)) {
	var checks = document.getElementById('search-filters');
	checks = checks.getElementsByTagName('input');

	var t = checks[4].checked;
	checks[4].checked = true;
	checks[4].checked = false;
	checks[4].checked = t;	

	for(i=0; i<checks.length; i++) {
		if( checks[i].value == match[1] ) {
			checks[i].checked = true;
		}
	}

	textbox.value = textbox.value.replace(match[0], '').replace(/^\s+|\s+$/g,"");
}