/* Browser check */
IS_DOM = (document.getElementById) ? true : false;
IS_IE = (document.all) ? true : false;
IS_IE50 = (navigator.userAgent.indexOf("IE 5.0") != -1);
IS_Mac = (navigator.appVersion.indexOf("Mac") != -1);

// preload level 1 buttons
var btnLevel1 = new Array();
btnLevel1 = ["my-life", "thoughts", "what", "straight", "contact"];
for (var i = 0; i < btnLevel1.length; i++) { 
	eval("A" + i + "on = new Image();"); eval("A" + i + "off = new Image();");
	eval("A" + i + "on.src = \"" + sFolderLevel + "img/interface/l1-" + btnLevel1[i] + "-r.gif\";");
	eval("A" + i + "off.src = \"" + sFolderLevel + "img/interface/l1-" + btnLevel1[i] + "-0.gif\";");
}

var btnLevel2 = new Array();
switch (subSection){
	case "my-life":
		btnLevel2 = ["publications", "timeline"];
		break;
	case "thoughts":
		btnLevel2 = ["education", "healthcare","energy","other","leadership"];
		break;
	case "believe":
		btnLevel2 = ["foundation", "statue","lehigh","nourish","olivio","award"];
		break;
}
for (var i = 0; i < btnLevel2.length; i++) { 
	eval("B" + i + "on = new Image();"); eval("B" + i + "off = new Image();");
	eval("B" + i + "on.src = \"" + sFolderLevel + "img/interface/l2-" + btnLevel2[i] + "-r.gif\";");
	eval("B" + i + "off.src = \"" + sFolderLevel + "img/interface/l2-" + btnLevel2[i] + "-0.gif\";");
}

var btnLevel3 = new Array();
btnLevel3 = ["view", "aggregate","tell","print","logout"];
for (var i = 0; i < btnLevel3.length; i++) { 
	eval("C" + i + "on = new Image();"); eval("C" + i + "off = new Image();");
	eval("C" + i + "on.src = \"" + sFolderLevel + "img/content-design/scor-" + btnLevel3[i] + "-r.gif\";");
	eval("C" + i + "off.src = \"" + sFolderLevel + "img/content-design/scor-" + btnLevel3[i] + "-0.gif\";");
}

// Image Swapping
function changeImages() 
{
  if (document.getElementById) {
    for (var i = 0; i < changeImages.arguments.length; i += 2) { 
  		document.getElementById(changeImages.arguments[i]).src = eval(changeImages.arguments[i + 1] + ".src"); 
	}
  }
}