function shows(name,crus,num)
{
	for(i=1;i<num;i++)
	{
		var menu=document.getElementById(name+i);
		menu.style.cursor="hand";
		var con=document.getElementById("con_"+name+"_"+i);
		menu.className=i==crus ? "c_jsblock" : "c_blues";
		con.style.display=i==crus ? "block" : "none";
		
	}
}