// JavaScript Document
var id;
function showHide(id)
{
	var i;
	var state="";
	for (i=0;i<document.all.length;i++)
	{
		if (document.all[i].id.indexOf("son")>=0)
		{
			if (document.all[i].id=="son"+id)
				state=document.all[i].style.display;
			document.all[i].style.display="none";
		}
	}

	var obj=eval("document.all.son"+id);
	if (state=="none")
	{
		obj.style.display="";
	}
	else
	{
		obj.style.display="none";
	}
}