// search form rollover

function classChange(styleChange,item) {
	item.className = styleChange;
}

// hides/shows final dropdown dependent on selection of penultimate dropdown
// also toggles whether page valitdation is tripped by final dropdown

function not_visible(){
  if(document.getElementById('group').selectedIndex == 1){
         document.getElementById('hideDT').className = "showVenue";
         document.getElementById('hideDD').className = "showVenue";                 
               if(document.getElementById('venueNum').selectedIndex == 0){
                   document.getElementById('hiddenVenueNum').value = "";
               }  
               else{
                   document.getElementById('hiddenVenueNum').value = "N/A";
               }   
  }
  else {    
         document.getElementById('hideDT').className = "hideVenue";
         document.getElementById('hideDD').className = "hideVenue";
         document.getElementById('venueNum').selectedIndex = 0;    
         document.getElementById('hiddenVenueNum').value = "N/A";
        }
}


// apply :hover and :focus for Internet Explorer
// code courtesy of http://www.htmldog.com/articles/suckerfish/shoal/

/*function suckerfish(type, tag, parentId) {
	if (window.attachEvent) {
		window.attachEvent("onload", function() {
			var sfEls = (parentId==null)?document.getElementsByTagName(tag):document.getElementById(parentId).getElementsByTagName(tag);
			type(sfEls);
		});
	}
}

sfHover = function(sfEls) {
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className+=" sfhover";
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
		}
	}
}

sfFocus = function(sfEls) {
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onfocus=function() {
			this.className+=" sffocus";
		}
		sfEls[i].onblur=function() {
			this.className=this.className.replace(new RegExp(" sffocus\\b"), "");
		}
	}
}

suckerfish(sfHover, "LI", "sitenav");
suckerfish(sfFocus, "INPUT", "content");
suckerfish(sfFocus, "TEXTAREA", "content");*/