var shownDropDown = null;
var hideDropDownTimeout = 0;
if (window.defaultDropDown == undefined) {
  defaultDropDown = '';
}


function showDropDown(dropDownId, triggerLink) {
  cancelHideDropDown();
  doHideDropDown();
  shownDropDown = document.getElementById(dropDownId);
  shownDropDown.style.display = 'block';
  shownDropDown.onmouseout = triggerLink.onmouseout = hideDropDown;
  shownDropDown.onmouseover = cancelHideDropDown;
  if(defaultDropDown){
  	if(defaultDropDown != dropDownId){
		if(document.getElementById(defaultDropDown)){
  			document.getElementById(defaultDropDown).style.display = 'none';
		}
	}
  }
  
}

function hideDropDown() {
  hideDropDownTimeout = setTimeout('doHideDropDown(\'\')', 300);
}

function cancelHideDropDown() {
  clearTimeout(hideDropDownTimeout);
}

function doHideDropDown(newId) {
  if (shownDropDown) {
    shownDropDown.style.display = 'none';
	
  }
  if (newId != defaultDropDown && document.getElementById(defaultDropDown)) {
    //alert(newId);
    document.getElementById(defaultDropDown).style.display = newId?'none':'block';
  }

}