function toggleCol(strID, intCol){
  var objTable = document.getElementById(strID);
  var strDisplay = (objTable.rows[0].cells[intCol].style.display=="none")?"":"none";

  if(strDisplay=="none")
  {
	    for(var i=0; i<objTable.rows.length; i++){
			objTable.rows[i].cells[intCol].style.display = strDisplay;
			objTable.rows[i].cells[intCol+1].style.display = "";
		}
  }
  if(strDisplay=="")
  {
	  for(var i=0; i<objTable.rows.length; i++){
			objTable.rows[i].cells[intCol].style.display = strDisplay;
			objTable.rows[i].cells[intCol+1].style.display = "none";
		}
  }
} 

function toggle_crew(){
	
  var crew_2 = document.getElementById("crew_2");
  var crew_3 = document.getElementById("crew_3");

  if(document.crew_form.besatzung.selectedIndex==0)
  {
	  crew_2.style.display="none";
	  crew_3.style.display="none";
  }
  if(document.crew_form.besatzung.selectedIndex==1)
  {
	  crew_2.style.display="";
	  crew_3.style.display="none";
  }
  if(document.crew_form.besatzung.selectedIndex==2)
  {
	  crew_2.style.display="";
	  crew_3.style.display="";
  }
}

function toggle_datei_others(){
	
  var others = document.getElementById("others");

  if(document.others_form.kategorie.selectedIndex==5)
  {
	  others.style.display="";
  }
  else
  {
	  others.style.display="none";
  }
}

function downl_changed(which) {
	document.getElementById("helpcsv").style.display = "none";
	document.getElementById("helpcsvkomplett").style.display = "none";
	document.getElementById("helpvelum").style.display = "none";
	document.getElementById("helpwinregatta").style.display = "none";
	document.getElementById("helphtml").style.display = "none";

	document.getElementById("help"+which.value).style.display = "";
}