function hide(it){/*??¨°t2?¦Ì£¤*/
	it.children[1].style.visibility="hidden";
	it.children[1].style.display="none";
}
function show(it){	
	it.children[1].style.visibility="visible";
	it.children[1].style.display="block";
}
//µ¯³ö´°¿Ú
function popwin(url,name)
{
	var features='width=640,height=480,scrollbars=1 resizable=yes';
	window.open(url,'_blank',features);
}

function popwin2(url,name,width,height){
	if(width=='')
		width='640';
	if(height=='')
		height='480'
	var features='width='+width+',height='+height+',scrollbars=1';
	window.open(url,name,features);
}