var agt=navigator.userAgent.toLowerCase();
var isMajor  = parseInt(navigator.appVersion);
var isIE    = (agt.indexOf("msie") != -1);
var isIE4   = (isIE && (isMajor == 4) && (agt.indexOf("msie 5.0")==-1) ); 
var isIE4up = (isIE  && (isMajor >= 4));
var isAOL   = (agt.indexOf("aol") != -1);
var isAOL4  = (isAOL && isIE4);
var isOk    = (isIE4up || isAOL4); 


function fillSel(selObj) {
	var i = j = 0;
	var newItem;
	var src;
	var srcName = "";
        for (i = 0; i < selObj.length; i++)
		if (selObj.options[i].selected)
			srcName = selObj.options[i].value;
                if(srcName != '') {
		    src = eval(srcName);
		    with (document.search_form.make) {
			    options.length = 0;
			    for (i = 0; i < src.length; i++) {
				    newItem = options.length;
				    options[newItem] = new Option(src[i]);
				    options[newItem].value = src[i+1];
				    i++;
			    }
		    options[0].selected = true;
                }
	}

	if (!isOk)
		history.go(0);
}