function populares(seccion){
	document.getElementById('select_todos').style.backgroundImage="url(img/pop_no.jpg)";
	document.getElementById('select_ps3').style.backgroundImage="url(img/pop_no.jpg)";
	document.getElementById('select_x360').style.backgroundImage="url(img/pop_no.jpg)";
	document.getElementById('select_wii').style.backgroundImage="url(img/pop_no.jpg)";
	document.getElementById('select_'+seccion).style.backgroundImage="url(img/pop_actual_"+seccion+".jpg)";
	document.getElementById('select_todos_a').style.color="#000";
	document.getElementById('select_ps3_a').style.color="#000";
	document.getElementById('select_x360_a').style.color="#000";
	document.getElementById('select_wii_a').style.color="#000";
	document.getElementById('select_'+seccion+'_a').style.color="#FFFFFF";
	document.getElementById('pop_todos').style.display="none";
	document.getElementById('pop_ps3').style.display="none";
	document.getElementById('pop_x360').style.display="none";
	document.getElementById('pop_wii').style.display="none";
	document.getElementById('pop_'+seccion).style.display="block";
	
}
function clearField(field) {

if (field.value == "Buscar...") field.value = '';

}