// mouseover preloads
var mouseovers = new Array();
if (document.images) {
	var mouseoversList = new Array('buzz', 'tips', 'tools', 'vet_forum');
	for (var i=0; i<mouseoversList.length; i++) {
		mouseovers[mouseoversList[i]+'Off'] = new Image();
		mouseovers[mouseoversList[i]+'Off'].src = "images/"+mouseoversList[i]+'_off.gif';
		mouseovers[mouseoversList[i]+'On'] = new Image();
		mouseovers[mouseoversList[i]+'On'].src = "images/"+mouseoversList[i]+'_on.gif';
	}
}

// mouseover image functions
function imgOn(imgName) {
    // don't turn on current page's nav link
    if (document.images && (imgName != curPage)) { document[imgName].src = mouseovers[imgName+'On'].src; }
}

function imgOff(imgName) {
    // don't turn off current page's nav link
    if (document.images && (imgName != curPage)) { document[imgName].src = mouseovers[imgName+'Off'].src; }
}