function ge()
{var ea;for(var i=0;i<arguments.length;i++){var e=arguments[i];if(typeof e=='string')
e=document.getElementById(e);if(arguments.length==1)
return e;if(!ea)
ea=new Array();ea[ea.length]=e;}
return ea;}
function show()
{for(var i=0;i<arguments.length;i++){var element=ge(arguments[i]);if(element&&element.style)element.style.display='block';}}
function hide()
{for(var i=0;i<arguments.length;i++){var element=ge(arguments[i]);if(element&&element.style)element.style.display='none';}}
function shown(el){el=ge(el);return(el.style.display!='none');}
function shide(el){if(shown(el)){hide(el);}else{show(el);}}