var bDefault = true;
var nCurrent;
var sImagePath = "/images/"; //include trailing slash
function petaliaHomeInit() {
	if (document.getElementById) {
		//not for ie5
		if ((window.createPopup) || ((! window.createPopup) && (! document.all))) {
			
			//moz, safari, etc
			if (! document.all) {
				var d = document.getElementById('petaliaHomeFeatureDefault');
				d.style.height= "297px";
			}
			//preload rollover tab
			var oRoll = new Image();
			oRoll.src = sImagePath + "tabpeta.gif"
			//preload feature images
			var aImages = new Array();
			for (var i=1; i < 7; i++) {
				aImages[i] = new Image();
				aImages[i].src = sImagePath + "newpe" + i + ".gif";
			}
			for (var i=0; i < 6; i++) {							
				var oNav = document.getElementById('petalianav' + i);
				oNav.nID = i;
				//features have default style, override e have scripting
				var oFeature = document.getElementById('petaliaHomeFeature' + i);
				oFeature.className = "petaliaHomeFeature";
				oNav.onmouseover = function() {
					if (bDefault) {
						petaliaHomeHideDefault();
						bDefault = false;
					}
					var n = this.nID;
					if (nCurrent != n) {					
						nCurrent = n;
						petaliaHomeNavAllOff();
						var oFeature = document.getElementById('petaliaHomeFeature' + n);
						var oItem = document.getElementById('petalianav' + n);	
						var oLink = oItem.getElementsByTagName('a')[0];
						var oAlt = oFeature.getElementsByTagName('span')[0];												
						oFeature.style.marginLeft = "0px";
						//line below commented by Christy to fix bug where tabs disappeared momentarily
						//oItem.className = 'petaliaNavOn';
						oLink.className = "petaliaNavOn";
						
						//add image if not already done
						if (oFeature.bImage != true) {
							if (document.createElement) {
								var oImage = document.createElement('img');
								oImage.src = sImagePath + "newpe" + (n+1) + ".gif";
								oImage.width = "423";
								oImage.height = "127";
								oImage.alt = oAlt.innerHTML;
								oFeature.appendChild(oImage);
								oFeature.bImage = true;
							}
						}					
						var f = new fade(oFeature, 0, 100, 100);
						f.start();
					}
				}	
			}
		}
	}
	function petaliaHomeNavAllOff() {
		for (var i=0; i < 6; i++) {
			var oFeature = document.getElementById('petaliaHomeFeature' + i);	
			var oItem = document.getElementById('petalianav' + i)
			var oLink = oItem.getElementsByTagName('a')[0];			
			oFeature.style.marginLeft = "-9999px";
			oFeature.style.opacity = "0";
			oFeature.style.filter = "alpha(opacity=0)";			
			//line below commented by Christy to fix bug where tabs disappeared momentarily
			//oItem.className = '';
			oLink.className = "";			
		}
	}
	function petaliaHomeHideDefault() {
		var oDefault = document.getElementById('petaliaHomeFeatureDefault');	
		var oDefaultCopy = document.getElementById('petaliaHomeFeatureDefaultCopy');
		var oFooter = document.getElementById('petaliaHomeFooter');
		oDefaultCopy.style.display = "none";
		oDefault.className = "petaliaHomeFeatureBack";
		//oFooter.style.backgroundImage = "url(" + sImagePath + "footerb.gif)";
	}
}