function _ID(id)
{
 return document.getElementById(id);
}

function _GTN(type)
{
 return document.getElementsByTagName(type);
}

function _OGTN(obj,type)
{
 return obj.getElementsByTagName(type);
}

function _GN(name)
{
 return document.getElementsByName(name);
}

function _CE(type,vars)
{
 var ele=document.createElement(type);
 for(var key in vars)
 {
  ele[key]=vars[key];
 }
 return ele;
}