Script working in Firefox but not IE, help?

Hi folks,
I'm having a little trouble with a script and was hoping that I could get some help. This script is being used to switch between three different languages of content that are each contained in their individual <div> tags. The script appears to be working correctly in FireFox but in IE it is not working at all; IE gives me this error:

Message: Invalid character
Line: 1
Char: 1
Code: 0
URI: scripts/languageCtl.js

Code (markup):

The code is as follows:

window.onload=function pgLoaded(){
	var langStr = window.location.search;
	if (langStr != "undefined") {
		var langParts = langStr.split("=");
		var lang =  langParts[1];
	}
	else {
	lang = "english";
	}
	for (i = 0; i < document.langForm.langSel.options.length; i++){
		if (lang == document.langForm.langSel.options[i].value) {
			document.langForm.langSel.options.selectedIndex = i;
			break;
		}
	}
	obj=document.langForm.langSel;
	if (obj.addEventListener)
		obj.addEventListener("change",switchLang,false);
	else
		obj.attachEvent("onchange",switchLang);
		
	switchLang();
}
//alert("language=" + lang);
	
function switchLang(){
		// document.write("langForm=" + langForm + " langSel=" + document.langForm.langSel + " selectIndex=" + document.langForm.langSel.selectedIndex);	
	var ind=document.langForm.langSel.options.selectedIndex;
	var lang=document.langForm.langSel.options[ind].value;
	var links = document.getElementsByTagName("div");

	for (i = 0; i < links.length; i++) {
	  //alert("links[i].className=" + links[i].className);  
    	if (!(links[i].className==undefined)){
			for (j = 0; j < document.langForm.langSel.options.length; j++){
				if (links[i].className == document.langForm.langSel.options[j].value) {
					if (links[i].className==lang){
						links[i].style.visibility = "visible";
						links[i].style.display = "inherit";
					}
	  				else {
						links[i].style.visibility = "hidden";
						links[i].style.display = "none";
					}
				}
	  		}
		}
	 //document.write("className=" + links[i].className + " param=" + lang);
  	}
}

Code (markup):

Please let me know if you need any more information. Any help will be greatly appreciated, thanks!