IE div popup not displaying correctly

[Awesomolocity]

http://awesomolocity.info/beta/analyzer.php?id=4319363

So, the issue I'm having is that when you click "Options", on IE, instead of doing a popup div over the content, it just shoves the "options" below the rest of the page. I'm unsure why it would do that.

But here's the code:

function createDivPopup(content,close,css,bgImage,imp){
	if(!content){content='';}
	if(!css){css='';}
	if(!bgImage){bgImage='data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAAZiS0dEAP8A/wD/oL2nkwAAAAlwSFlzAAALEwAACxMBAJqcGAAAAAd0SU1FB9kJCwEbAIsAo5oAAAAZdEVYdENvbW1lbnQAQ3JlYXRlZCB3aXRoIEdJTVBXgQ4XAAAADUlEQVQI12NgYGCoBwAAhACAxkwJbwAAAABJRU5ErkJggg==';}
	if(!imp){imp=''}
	var pageHeight=window.innerHeight;
	var pageWidth=window.innerWidth;
	var div=document.createElement('div');
	if(!close){
		var close = '';
	}
	else{
		var close = close;
	}
	var adsdiv = document.createElement('div');
	adsdiv.id='adsdiv';
	adsdiv.setAttribute('style','z-index:9002;position:absolute;top:0;left:0; background-color: #000000;"');
	ads = ['10,000,000|~|http://www.gaiaonline.com/forum/t.36828231/|~|http://i4.photobucket.com/albums/y124/leeontime/awesome10000000.png', 'Increase Scores & Reduce Lag Guide|~|http://www.gaiaonline.com/forum/t.70297743/|~|', 'Fish Drops in BG|~|http://www.gaiaonline.com/t.70837891/|~|', 'Fish Stats|~|http://www.gaiaonline.com/forum/t.71307913/|~|'];
	var ad = ads[Math.floor(Math.random()*ads.length)];
	if(ad.split('|~|')[2]==''){
		var adcontent = '<!--Haha Homo--><img style="cursor:pointer;" src="http://awesomolocity.info/createImage.php?Tcolor=black&BGround=white&text='+escape(ad.split('|~|')[0])+'" onclick="window.open(\''+ad.split('|~|')[1]+'\', \'_blank\')" /><br />Advertisement section.<br />Will add a way to get here, later.';
	}
	else{
		var adcontent = '<!--Haha Homo--><img style="cursor:pointer;" src="'+ad.split('|~|')[2]+'" onclick="window.open(\''+ad.split('|~|')[1]+'\', \'_blank\')" /><br />Advertisement section.<br />Will add a way to get here, later.';
	}
	adsdiv.innerHTML = adcontent;
	div.id='GM_divPopup';
	//div.setAttribute('style','z-index:9001/* its over nine thousand*/'+imp+';width:100%'+imp+';height:100%'+imp+';position:fixed'+imp+';top:0px'+imp+';left:0px'+imp+';background-repeat:repeat'+imp+';background-image:url('+bgImage+')'+imp+'');
	div.setAttribute('style','z-index:9001/* its over nine thousand*/'+imp+';width:100%'+imp+';height:100%'+imp+';position:fixed'+imp+';top:0px'+imp+';left:0px'+imp+';background-color:#000000;opacity: .9;');
	div.innerHTML='<style type="text/css">'+css+'</style>'+
		close+
		'<div style="margin-left:58px'+imp+';margin-top:41px'+imp+';height:'+(pageHeight-82)+'px'+imp+';width:'+(pageWidth-116)+'px'+imp+';">'+
			'<div>'+
				'<table id="GM_divPopupContentHolder" style="margin-left:auto'+imp+';margin-right:auto'+imp+';"><tr><td class="derpy nob">'+content+'</td></tr></table>'+
			'</div>'+
		'</div>';
	document.body.appendChild(div);
	document.body.appendChild(adsdiv);
	var contentHolder=document.getElementById('GM_divPopupContentHolder');
	var topMargin=pageHeight/2-contentHolder.offsetHeight/2;
	if (topMargin<0){topMargin=0;}
	contentHolder.parentNode.setAttribute('style','max-height:'+(pageHeight-82)+'px'+imp+';max-width:'+(pageWidth-116)+'px'+imp+';width:'+(contentHolder.offsetWidth+20)+'px'+imp+';height:'+(contentHolder.offsetHeight+20)+'px'+imp+';margin-top:'+topMargin+'px'+imp+';margin-left:auto'+imp+';margin-right:auto'+imp+';overflow:auto'+imp+';');
}
function options(){
	var options = 'options'.getCookie();
	if(options != null && options != ''){
		createDivPopup('<span style="opacity: 1 !important;color: #ffffff;"><strong>Options coming *very* soon. xP</strong></span>','<a id="GM_closeDivPopup" style="border: 5px solid white; padding: 5px;-moz-border-radius: 10px;text-decoration: none; color: white;opacity: 1 !important; position: absolute; top: 5px; right: 5px;z-index:9002;background-color:black;" onclick="var node = document.getElementById(\'adsdiv\');node.parentNode.removeChild(node);this.parentNode.parentNode.removeChild(this.parentNode);return false;">Close</a>');
	}
	else{
		createDivPopup('<span style="color: #ffffff;"><strong>Coming Soon. xP</strong></span>','<a id="GM_closeDivPopup" style="border: 5px solid white; padding: 5px;-moz-border-radius: 10px;text-decoration: none; color: white; position: absolute; top: 5px; right: 5px;z-index:9002;opacity: 1 !important;background-color:black;" onclick="var node = document.getElementById(\'adsdiv\');node.parentNode.removeChild(node);this.parentNode.parentNode.removeChild(this.parentNode);return false;">Close</a>');
		var string = 'options';
		string.setCookie('false,false,false,false,false,false,false,false,false');
	}
}

Assistance would be highly appreciated. ^_^