// clear the cost fields, and toggle whether they're enabled
toggle_free = function(cbox){
	document.frmAddevent.cost.value = '';
	document.frmAddevent.cost_max.value = '';

	var disabled = document.frmAddevent.cost.disabled ? false : true;
	
	document.frmAddevent.cost.disabled = disabled;
	document.frmAddevent.cost_max.disabled = disabled;
};

toggle_free_edit = function(cbox){
	document.frmUpdateevent.cost.value = '';
	document.frmUpdateevent.cost_max.value = '';

	var disabled = document.frmUpdateevent.cost.disabled ? false : true;
	
	document.frmUpdateevent.cost.disabled = disabled;
	document.frmUpdateevent.cost_max.disabled = disabled;
};

//check uncheck state
function newTableToggle(idTD, idImg){
	var td = document.getElementById(idTD);
	var img = document.getElementById(idImg);
	if(td != null && img != null){
		var isHidden = td.style.display == "none" ? true : false;
		img.src = isHidden ? "images/icon_hide.gif" : "images/icon_show.gif";
		img.alt = isHidden ? "Hide" : "Show";
		td.style.display = isHidden ? "" : "none";
	}
}

function doSubmit(){ 
	var refForm = document.getElementById("myform1");
	var bConfirm = true;
	if(doSubmit.arguments[1])
		bConfirm = confirm(doSubmit.arguments[1]);
	if(bConfirm){
		refForm.action.value = arguments[0];
		refForm.submit();
		return false;
	}
}
function checkstate()
{
		  anychecked=0;
		  var refForm = document.getElementById("myform1");
		  if (refForm.ckID.length>=2)
		  for (i=0;i<refForm.ckID.length;i++)
		  {
			anychecked=(anychecked||refForm.ckID[i].checked)
		  }
		  else anychecked=refForm.ckID.checked;
		  if (anychecked) 
		  {
			refForm.btn_delete.disabled = false
			refForm.btn_activate.disabled = false
		  }
		  else 
		  {
			refForm.btn_delete.disabled = true
			refForm.btn_activate.disabled = true
		  }
}

checkedall=false;
function checkall()
{

		  checkedall=!(checkedall);  
		  var refForm = document.getElementById("myform1");
		  if (refForm.ckID.length>=2)
			  for (i=0;i<refForm.ckID.length;i++)
			  {
				refForm.ckID[i].checked = checkedall;
			  }
		  else refForm.ckID.checked = checkedall;
		 refForm.btn_delete.disabled = !(checkedall);
		 refForm.btn_activate.disabled = !(checkedall);
}