function initSubnav(){
	if (!document.getElementById('bodyhome')){
		var subnav = document.getElementById('subnav');
		var subnavas = subnav.getElementsByTagName('a');
		for (var a=0; a<subnavas.length; a++){
			var currenthref=String(subnavas[a].href);
			var currentloc=String(document.location);
			if (unescape(currenthref)==unescape(currentloc)){
				subnavas[a].className="current"
			}
		}
	}
}

function initPhoto(){
	if (!document.getElementById('bodyhome')){
		var ph = genRand(15);
		document.getElementById("polaroid").innerHTML = "<img src=\"../img/polaroid-sm"+ph+".gif\" width=\"210\" height=\"245\" alt=\"Adopt a Dalmatian Heritage Project Dalmatian\" id=\"polaroidimg\" />"
	} else if (document.getElementById('bodyhome')){
		var ph = genRand(15);
		document.getElementById("polaroid").innerHTML = "<img src=\"img/polaroid-lg"+ph+".gif\" width=\"332\" height=\"378\" alt=\"Adopt a Dalmatian Heritage Project Dalmatian\" id=\"polaroidimg\" />"
	}
	image = document.getElementById("polaroidimg");
	setOpacity(image, 0);
	image.style.visibility = 'visible';
	fadeIn("polaroidimg",00);
}

function setOpacity(obj, opacity) {
  opacity = (opacity == 100)?99.999:opacity;
  // IE/Win
  obj.style.filter = "alpha(opacity:"+opacity+")";
  // Safari<1.2, Konqueror
  obj.style.KHTMLOpacity = opacity/100;
  // Older Mozilla and Firefox
  obj.style.MozOpacity = opacity/100;
  // Safari 1.2, newer Firefox and Mozilla, CSS3
  obj.style.opacity = opacity/100;
}

function fadeIn(objId,opacity) {
	if (document.getElementById) {
		obj = document.getElementById(objId);
		if (opacity <= 100) {
			setOpacity(obj, opacity);
			opacity += 5;
			window.setTimeout("fadeIn('"+objId+"',"+opacity+")", 20);	
		}
	}
}

function addAnEvent( target, eventName, functionName){
	eval('target.on'+eventName+'=functionName');
}

function genRand(x) {
	var range = x;
	return Math.floor(Math.random() * range) + 1;
}

function initialize(){
	if ( document.getElementById ){
		initSubnav(); initPhoto();
	}
}

window.onload=initialize;