isNS4 = (document.layers) ? true : false;
isIE4 = (document.all && !document.getElementById) ? true : false;
isIE5 = (document.all && document.getElementById) ? true : false;
isNS6 = (!document.all && document.getElementById) ? true : false;

if(document.images) {
        home1=new Image();
        home1.src="scl_b1.gif";
        home2=new Image();
        home2.src="scl_b1_over.gif";
        associates1=new Image();
        associates1.src="scl_b2.gif";
        associates2=new Image();
        associates2.src="scl_b2_over.gif";
        software1=new Image();
        software1.src="scl_b5.gif";
        software2=new Image();
        software2.src="scl_b5_over.gif";
        req1=new Image();
        req1.src="scl_b3.gif";
        req2=new Image();
        req2.src="scl_b3_over.gif";
        web1=new Image();
        web1.src="scl_b4.gif";
        web2=new Image();
        web2.src="scl_b4_over.gif";
        rglm1=new Image();
        rglm1.src="scl_b6.gif";
        rglm2=new Image();
        rglm2.src="scl_b6_over.gif";
        time1=new Image();
        time1.src="scl_b7.gif";
        time2=new Image();
        time2.src="scl_b7_over.gif";
        rule1=new Image();
        rule1.src="scl_b8.gif";
        rule2=new Image();
        rule2.src="scl_b8_over.gif";
}

function changeimage(divname,linkname,imgname) {
        if (document.images) {
                if ((isNS4) && (divname != null )) {
                        document[divname].document.images[linkname].src = eval(imgname + ".src");
                } else {
                        document[linkname].src = eval(imgname + ".src");
                }
        }
}

function over(sObj,nVal) {

        var sShow = "";
        var sHide = "";

        // check browser
        if (isNS4) {
                sShow = "show";
                sHide = "hide";
        } else {
                sShow = "visible";
                sHide = "hidden";
        }


        // clear out all menus
        if (isNS4) {
                document['newWebcourse'].visibility = sHide;
                document['newWebcourse2'].visibility = sHide;
                document['newSoftware'].visibility = sHide;
                document['newSoftware2'].visibility = sHide;
                document['newSoftware3'].visibility = sHide;
                document['newSoftware4'].visibility = sHide;
        } else {
                document.getElementById('newWebcourse').style.visibility = sHide;
                document.getElementById('newWebcourse2').style.visibility = sHide;
                document.getElementById('newSoftware').style.visibility = sHide;
                document.getElementById('newSoftware2').style.visibility = sHide;
                document.getElementById('newSoftware3').style.visibility = sHide;
                document.getElementById('newSoftware4').style.visibility = sHide;
        }

        // select specific menus--
        if ( nVal == 1 ) {

                // Webcourse
                if (sObj == "Webcourse") {
                        if (isNS4) {
                                document['newWebcourse'].visibility = sShow;
                                document['newWebcourse2'].visibility = sShow;
                        } else {
                                document.getElementById('newWebcourse').style.visibility = sShow;
                                document.getElementById('newWebcourse2').style.visibility = sShow;
                        }

                // Software
                } else if (sObj == "Software") {

                        if (isNS4) {
                                document['newSoftware'].visibility = sShow;
                                document['newSoftware2'].visibility = sShow;
                                document['newSoftware3'].visibility = sShow;
                                document['newSoftware4'].visibility = sShow;
                        } else {
                                document.getElementById('newSoftware').style.visibility = sShow;
                                document.getElementById('newSoftware2').style.visibility = sShow;
                                document.getElementById('newSoftware3').style.visibility = sShow;
                                document.getElementById('newSoftware4').style.visibility = sShow;
                        }

                }


           }



}