function rem(toremove){
	var splash_cur_PrefBranchPrefix = "profile.splash." + toremove;
//alert(splash_cur_PrefBranchPrefix);
	var prefService = Components.classes["@mozilla.org/preferences-service;1"]
			.getService(Components.interfaces.nsIPrefService);
	var nsIPrefBranchObj = prefService.getBranch(splash_cur_PrefBranchPrefix);
	var prefCount = {value:0}; 
    var prefArray = nsIPrefBranchObj.getChildList("" , prefCount);   
	var branchService = nsPreferences.mPrefService;
		for (var i = 0; i < prefArray.length; ++i) {
			if (branchService.prefHasUserValue(splash_cur_PrefBranchPrefix + prefArray[i])) {
				branchService.clearUserPref(splash_cur_PrefBranchPrefix + prefArray[i]);
			}
	}
	var splashtestname2 = nsPreferences.copyUnicharPref("profile.list.splash");
	var splashtestparsed2 = splashtestname2.split(";");
    for (i=0; i<splashtestparsed2.length; i++)
    {
		if (!(splashtestparsed2[i]==toremove)) {
			var newpref=splashtestparsed2[i]+";";
		}
	}
//alert(newpref);
	nsPreferences2.setCharPref("profile.list.splash", newpref);
	window.location.reload();
}