projecton = new Image();                    
projecton.src = "images/nav/project_on.gif";
projectoff = new Image();
projectoff.src = "images/nav/project_off.gif";

teamon = new Image();                    
teamon.src = "images/nav/team_on.gif";
teamoff = new Image();
teamoff.src = "images/nav/team_off.gif";

toolson = new Image();                    
toolson.src = "images/nav/tools_on.gif";
toolsoff = new Image();
toolsoff.src = "images/nav/tools_off.gif";

workon = new Image();                    
workon.src = "images/nav/work_on.gif";
workoff = new Image();
workoff.src = "images/nav/work_off.gif";

workingon = new Image();                    
workingon.src = "images/nav/working_on.gif";
workingoff = new Image();
workingoff.src = "images/nav/working_off.gif";

worklink1on = new Image();                    
worklink1on.src = "images/work_link_on.gif";
worklink1off = new Image();
worklink1off.src = "images/work_link_off.gif";

worklink2on = new Image();                    
worklink2on.src = "images/work_link_on.gif";
worklink2off = new Image();
worklink2off.src = "images/work_link_off.gif";

worklink3on = new Image();                    
worklink3on.src = "images/work_link_on.gif";
worklink3off = new Image();
worklink3off.src = "images/work_link_off.gif";

worklink4on = new Image();                    
worklink4on.src = "images/work_link_on.gif";
worklink4off = new Image();
worklink4off.src = "images/work_link_off.gif";

// On function
function imgAct(imgName) {
    document[imgName].src = eval(imgName + "on.src");
}

// Off function
function imgInact(imgName) {
    document[imgName].src = eval(imgName + "off.src");
}

function jumpTo(optionObj) {
    window.location.href = optionObj.options[optionObj.selectedIndex].value;
}