function go(){ 

var dong = document.getElementById('search').c.value;
var dongo = document.getElementById('search').skey.value;

	if(dong==""){
	alert("Por favor elige una Categoría.");
	document.getElementById('search').c.focus();
	return false;
	}

	if(dongo==""){
	
	document.getElementById('search').skey.focus();
	return false;
	}

	// IE메모리누수방지 삽입
	try { 
	return dong; 
	} finally { 
	dong = null; 
	} 

	try { 
	return dongo; 
	} finally { 
	dongo = null; 
	} 
	// IE메모리누수방지 삽입

}