function makeKeyword(s) {
	var q_value = "";
	var length = document.f.elements.length;

	for(i = 0; i < length; i++) {
		if(document.f.elements[i].name == "as_q") {
			q_value += document.f.elements[i].value;
		} else if(document.f.elements[i].name == "as_oq") {
			var as_oq = document.f.elements[i].value;
			if(as_oq != null && as_oq.length > 0) {

			as_oq = as_oq.replace(/กก/g, " ");
	    		var oq = as_oq.split(" ");
				for (j=0; j<oq.length; j++) {
					if (j!=0) q_value += " OR";
					q_value += (" " + oq[j]);
				}
			}
		} else if(document.f.elements[i].name == "as_epq") {
			var as_epq = document.f.elements[i].value;
			if(as_epq != null && as_epq.length > 0) {
			    q_value += " \"" + as_epq + "\"";
			}
		} else if(document.f.elements[i].name == "as_eq") {
			var as_eq = document.f.elements[i].value;
			if(as_eq != null && as_eq.length > 0) {
			    as_eq = as_eq.replace(/กก/g, " ");
			    var eq = as_eq.split(" ");
			    for (j=0; j<eq.length; j++) {
			        q_value += (" -" + eq[j]);
			    }
			}
		} else if(document.f.elements[i].name == "as_sitesearch") {
			var as_sitesearch = document.f.elements[i].value;
				if(as_sitesearch != null && as_sitesearch.length > 0) {
				    as_sitesearch = as_sitesearch.replace(/กก/g, " ");
				    var sitesearch = as_sitesearch.split(" ");
				    as_dt = document.f.as_dt.value;
				    for (j=0; j<sitesearch.length; j++) {
					if (as_dt != null && as_dt.length > 0 && as_dt == "e") {
					    q_value += (" -site:" + sitesearch[j]);
					} else {
					    q_value += (" site:" + sitesearch[j]);
					}
				}
			}
		}
	}

	if (s == 1) {
		document.f.q.value = q_value;
		document.f.as_q.value = "";
		document.f.as_oq.value = "";
		document.f.as_epq.value = "";
		document.f.as_eq.value = "";
		document.f.as_sitesearch.value = "";
	} else {
		document.f.Text.value = q_value;
	}
	document.forms["f"].submit();
}