function buscar1() {
	var pesquisa = document.frmbuscar1.pesquisa1.value;
	var opcao = document.frmbuscar1.busca1;
	var tmpstr = "";
	
	for ( ind=0; ind < pesquisa.length ; ind++ ){
		if ( pesquisa.charAt(ind) == ' ' ){
			tmpstr = tmpstr + '+';
		}
		else{
			tmpstr = tmpstr + pesquisa.charAt(ind);
		}
	}
	
	pesquisa=tmpstr;
	
	if ( pesquisa==""){
		alert("Insira uma palavra para pesquisar" );
		return false;
	}
	else
	{
		if (opcao[0].checked){
			nw=window.open("http://www.altavista.com/cgi-bin/query?q="+pesquisa+"&kl=XX&pg=q&Translate=on&search.x=33&search.y=9","wd");
			nw.focus();
		}
		if (opcao[1].checked){
			nw=window.open("http://www.go.com/Split?pat=go&col=WW&qt="+pesquisa+"&Go=GO%21","wd");
			nw.focus();
		}
		if (opcao[2].checked){
			nw=window.open("http://hotbot.lycos.com/?MT="+pesquisa+"&SM=MC&DV=0&LG=any&DC=10&DE=2&AM1=MC&x=33&y=12","wd");
			nw.focus();
		}
		if (opcao[3].checked){
			nw=window.open("http://www.looksmart.com/r_search?look=&key="+pesquisa+"","wd");
			nw.focus();
		}
		if (opcao[4].checked){
			nw=window.open("http://www.google.com/search?q="+pesquisa+"&meta=lr%3D%26hl%3Dpt&btnG=Pesquisa+Google","wd");
			nw.focus();
		}
		if (opcao[5].checked){
			nw=window.open("http://search.britannica.com/search?query="+pesquisa+"","wd");
			nw.focus();
		}
		if (opcao[6].checked){
			nw=window.open("http://hotbot.lycos.com/?MT="+pesquisa+"&SM=MC&DV=0&LG=any&DC=10&DE=2&AM1=MC&x=38&y=9","wd");
			nw.focus();
		}
		if (opcao[7].checked){
			nw=window.open("http://search.excite.com/search.gw?search="+pesquisa+"","wd");
			nw.focus();
		}
		if (opcao[8].checked){
			nw=window.open("http://search.aol.com/dirsearch.adp?query="+pesquisa+"","wd");
			nw.focus();
		}
		if (opcao[9].checked){
			nw=window.open("http://www.lycos.com/srch/?lpv=1&loc=searchhp&query="+pesquisa+"&x=46&y=6","wd");
			nw.focus();
		}
		if (opcao[10].checked){
			nw=window.open("http://www.webcrawler.com/cgi-bin/WebQuery?searchText="+pesquisa+"","wd");
			nw.focus();
		}
		if (opcao[11].checked){
			nw=window.open("http://www.northernlight.com/nlquery.fcg?cb=0&qr="+pesquisa+"&search.x=31&search.y=13","wd");
			nw.focus();
		}
		return false;
	}
}