function showhorse(horseid){
	document.getElementById('covercontent').style.display = 'block';	
	var	horsedetail = document.getElementById('horsedetail');
	horsedetail.style.display = 'block';
	horsedetail.innerHTML = '<center><iframe id="horsedetail_iframe" src="/php/horsedetail.php?horseid='+horseid+'" frameborder="0"></iframe></center>';
}

function hidehorse(){
	document.getElementById('covercontent').style.display = 'none';
	document.getElementById('horsedetail').style.display = 'none';
}

function swaphorse(thumbid){
	var thumb = document.getElementById(thumbid);
	var showimg = document.getElementById('showimg');
	var temp = showimg.src;
	showimg.src = thumb.src;
	thumb.src = temp;
}

function showopacity(){
	var thumb = document.getElementById('thumbnails');
	thumb.style.opacity='0.5';
	thumb.filters.alpha.opacity=50;
}

function hideopacity(){
	var thumb = document.getElementById('thumbnails');
	thumb.style.opacity='1';
	thumb.filters.alpha.opacity=100;
}