function showvideo(id){
var url="/videos/exec/get_galvideo.php?id="+id;
crear_script_tag_video(url);
}
function crear_script_tag_video(arch){
var sc_obj="JS_SCRIPT_OBJECT";
var obj_head = document.getElementsByTagName("head").item(0)
scriptTag = document.getElementById(sc_obj);
if(scriptTag!=null)
{
obj_head.removeChild(scriptTag);
delete scriptTag;
scriptTag=null;
}
scriptTag = document.createElement("SCRIPT");
var vch="?";
if (arch.indexOf("?")!=-1) vch="&";
scriptTag.src = arch+vch+Math.random()*1000000;
scriptTag.type = 'text/javascript';
scriptTag.id = sc_obj;
obj_head.appendChild(scriptTag);
}