function mandaSearch(divId,formId){
var q = document.getElementById("txt_query").value;
q = trim(q);
if(q != ""){
var search_str = document.getElementById(formId).action+"?"+"q="+q+
"&site="+document.getElementById("site_p").value+
"&client="+document.getElementById("client_p").value+
"&proxystylesheet="+document.getElementById("proxy_p").value+
"&proxyreload="+document.getElementById("proxyr_p").value+
 "&output="+document.getElementById("out_p").value+
 "&access="+document.getElementById("access_p").value+
 "&filter="+document.getElementById("filter_p").value;
 document.getElementById(divId).innerHTML = "";
 document.getElementById(divId).innerHTML = '<iframe frameborder="0" width="95%" height="1024px" src="'+search_str+'"></iframe>';
 }
}

function trim(stringToTrim) {
 return stringToTrim.replace(/^\s+|\s+$/g,"");
}

function imagenGoogle(){
 q = document.getElementById("txt_query");
 if(trim(q.value) == ""){
 q.style.background = '#FFFFFF url(http://www.promexico.gob.mx/buscador/google_search_watermark.gif) left no-repeat';
 }else{
 q.style.background = '#ffffff';
 }
}