// Handle the events that should run when the page is loaded.
// For details, see http://simon.incutio.com/archive/2004/05/26/addLoadEvent

function addLoadEvent(func)
{
    var oldonload = window.onload;

    if(typeof window.onload != 'function')
    {
        window.onload = func;
    }
    else
    {
        window.onload = function()
        {
            oldonload();
            func();
        }
    }
}

<!----------------------------------------------------------------------------->

rnd.today = new Date();
rnd.seed  = rnd.today.getTime();

function rnd()
{
    rnd.seed = (rnd.seed * 9301 + 49297) % 233280;
    return rnd.seed / (233280.0);
};

function getRandomNbr(aNumber)
{
    return Math.ceil(rnd() * aNumber);
};

<!----------------------------------------------------------------------------->
function switchTab(aSelection)
{
    if(document.getElementById)
    {
        var aTab1    = document.getElementById("tab1");
        var aTab2    = document.getElementById("tab2");
        var aTab3    = document.getElementById("tab3");
		var aTab4    = document.getElementById("tab4");
        var aTabImg1 = document.getElementById("tabImg1");
        var aTabImg2 = document.getElementById("tabImg2");
        var aTabImg3 = document.getElementById("tabImg3");
		var aTabImg4 = document.getElementById("tabImg4");

        switch(aSelection)
        {
            case 1:
                aTab1.style.backgroundColor = "#000000";
                aTab2.style.backgroundColor = "#999999";
 //               aTab3.style.backgroundColor = "#999999";
				
                aTabImg1.src = "images/tab/tab_dk_lt.gif";
                aTabImg2.src = "images/tab/tab_lt.gif";
 //               aTabImg3.src = "images/tab/tab_lt.gif";
				
                break;
            case 2:
                aTab1.style.backgroundColor = "#999999";
                aTab2.style.backgroundColor = "#000000";
//                aTab3.style.backgroundColor = "#999999";
				aTabImg1.src = "images/tab/tab_lt_dk.gif";
                aTabImg2.src = "images/tab/tab_dk.gif";
 //             	aTabImg3.src = "images/tab/tab_lt.gif";
                break;
//            case 3:
//               aTab1.style.backgroundColor = "#999999";
//               aTab2.style.backgroundColor = "#999999";
//               aTab3.style.backgroundColor = "#000000";
//	  			aTabImg1.src = "images/tab/tab_lt_lt.gif";
//               aTabImg2.src = "images/tab/tab_lt_dk.gif";
//                aTabImg3.src = "images/tab/tab_dk.gif";
				break;			
            default:
                aTab1.style.backgroundColor = "#999999";
                aTab2.style.backgroundColor = "#000000";
//				aTab3.style.backgroundColor = "#999999";
//                aTab4.style.backgroundColor = "#999999";
                aTabImg1.src = "images/tab/tab_lt_dk.gif";
                aTabImg2.src = "images/tab/tab_dk.gif";
//                aTabImg3.src = "images/tab/tab_lt_lt.gif";
	//			aTabImg4.src = "images/tab/tab_lt.gif";
        }
    }
}
function switchRightMenu(aSelection)
{  
    if(document.getElementById)
    {
        var aPanel1 = document.getElementById("panel_1");
        var aPanel2 = document.getElementById("panel_2");
        var aPanel3 = document.getElementById("panel_3");
        var aRCell1 = document.getElementById("rightCell1");
        var aRCell2 = document.getElementById("rightCell2");

        switch(aSelection)
        {
            case "1":
                hidePanel(aPanel2);
                hidePanel(aPanel3);
                showPanel(aPanel1);
                aRCell1.style.backgroundColor = "#ffffff";
                aRCell2.style.backgroundColor = "#ffffff";
                break;
            case "2":
                hidePanel(aPanel1);
                hidePanel(aPanel3);
                showPanel(aPanel2);
                aRCell1.style.backgroundColor = "#ffffff";
                aRCell2.style.backgroundColor = "#ffffff";
                break;

            case "3":
                hidePanel(aPanel1);
                hidePanel(aPanel2);
                showPanel(aPanel3);
                aRCell1.style.backgroundColor = "#ffffff";
                aRCell2.style.backgroundColor = "#ffffff";
                break;
            default:
                hidePanel(aPanel2);
                hidePanel(aPanel3);
				showPanel(aPanel1);
                aRCell1.style.backgroundColor = "#ffffff";
                aRCell2.style.backgroundColor = "#ffffff";
        }
    }
}

function hidePanel(aElt)
{
    if(aElt.style.display != "none")
    {
        aElt.style.display = "none";
    }
}

function showPanel(aElt)
{
    if(aElt.style.display != "block")
    {
        aElt.style.display = "block";
    }
}

function openNewWindow(URLtoOpen, windowName, windowFeatures)
{
  newWindow=window.open(URLtoOpen, windowName, windowFeatures);
}

 

		<!--
		function MM_preloadImages() { //v3.0
		  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
		    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
		    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
		}
		
		function MM_swapImgRestore() { //v3.0
		  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
		}
		
		function MM_findObj(n, d) { //v3.0
		  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
		    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
		  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
		  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document); return x;
		}
		
		function MM_swapImage() { //v3.0
		  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
		   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
		}
		//-->