function elemOn(elem_id){
		if(document.getElementById(elem_id))
			document.getElementById(elem_id).style.display = "block";
			
	}
	function elemOff(elem_id){
		if(document.getElementById(elem_id))
			document.getElementById(elem_id).style.display = "none";
		elemHide("close_" + elem_id)
	}
	function elemHide(elem_id){
		if(document.getElementById(elem_id))
			document.getElementById(elem_id).style.visibility = "hidden";
	}
	function elemUnHide(elem_id){
		if(document.getElementById(elem_id))
			document.getElementById(elem_id).style.visibility = "visible";
	}
	
	function hideAll(){
		for( var i = 1; i <= 4; i++ )
			elemOff( 'i-3.2' ); ///????
	}
	function showOne(elem_id){
//		hideAll( );
		elemOn( elem_id );
		elemUnHide("close_" + elem_id)
	}
	
  function autofitIframe(iframe)
  {
    var the_height= document.getElementById(iframe).contentWindow.document.body.scrollHeight;
    document.getElementById(iframe).style.height=the_height+10;
  }