function todos(chk,num){
	if(chk.checked == true){
		for (var i=0;i < document.forms[num].elements.length;i++){
			var elemento = document.forms[num].elements[i];
			if (elemento.type == "checkbox"){
				elemento.checked="checked";
			}
		}	
	}else{
		for (var i=0;i < document.forms[num].elements.length;i++){
			var elemento = document.forms[num].elements[i];
			if (elemento.type == "checkbox"){
				elemento.checked="";
			}
		}	
	
	}

}

function verDetalleOferta(a){
	url="/mercado_laboral/detalle_2.php?id="+a+"&postpopup=si";
	var opciones="scrollbars=yes,toolbar=no,location=no,directories=no,status=no,resizable=no,width=645,height=600,top="+((screen.height/2)-(600/2))+",left="+((screen.width/2)-(645/2))+"";
	var miPopup = window.open(url,"",opciones);	
	if(miPopup==null){
		window.parent.location.href="/mercado_laboral/detalle.php?id="+a;
	}
}