var navPic = new Array ("nav1", "nav2", "nav3", "nav4", "nav5", "nav6", "nav7");
function preload()
{
        if(!document.images) return;
        var obr0 = new Array();
        var obr1 = new Array();
        var obr2 = new Array();
        for (var i = 0; i < navPic.length; i++)
                {
                obr0[i] = new Image();
                obr0[i].src = "images/menu/"+navPic[i]+"_0.gif";

                obr1[i] = new Image();
                obr1[i].src = "images/menu/"+navPic[i]+"_1.gif";

                obr2[i] = new Image();
                obr2[i].src = "images/menu/"+navPic[i]+"_2.gif";
                }
}


var nnavig = 'nav1'; // value at the begining


function navOver (menuName)
        {
        if  (nnavig!=menuName) {document.all(menuName).src="images/menu/"+menuName+"_1.gif";}
        }
function navOut (menuName)
        {
        if  (nnavig!=menuName) {document.all(menuName).src="images/menu/"+menuName+"_0.gif";}
        }
function navClick (menuName)
        {
        document.all(menuName).src="images/menu/"+menuName+"_2.gif";
        nnavig = menuName;
		for (i = 0; i < navPic.length; i++)
                {
                if  (nnavig!=navPic[i]) {document.all(navPic[i]).src="images/menu/"+navPic[i]+"_0.gif";}
                }
        }