function swapTab(tab, displayProperty) {
    if (document.getElementById) {
        if (document.getElementById('tabNav') != "") {
            document.getElementById('tabNav').className = tab;
        }
  } 
    if (document.getElementById('content_swapper_' + displayProperty)) {
        for (var j=1; j <= 3; j++) {
            if (document.getElementById('content_swapper_' + j)) {
                document.getElementById('content_swapper_' + j).style.position = 'absolute';
                document.getElementById('content_swapper_' + j).style.visibility = 'hidden';
            }
        }
        document.getElementById('content_swapper_' + displayProperty).style.position = 'static';
        document.getElementById('content_swapper_' + displayProperty).style.visibility = 'visible';
    }
}
function swapTab2(tab, displayProperty) {
    if (document.getElementById) {
        if (document.getElementById('tabNav2')!="") {
            document.getElementById('tabNav2').className = tab;
        }
  }
    
    if (document.getElementById('content_swapper_' + displayProperty)) {
        for (var j=3; j <= 4; j++) {
            if (document.getElementById('content_swapper_' + j)) {
                document.getElementById('content_swapper_' + j).style.position = 'absolute';
                document.getElementById('content_swapper_' + j).style.visibility = 'hidden';
            }
        }
        document.getElementById('content_swapper_' + displayProperty).style.position = 'static';
        document.getElementById('content_swapper_' + displayProperty).style.visibility = 'visible';
    }
}
function swapTab3(tab, displayProperty) {
    if (document.getElementById) {
        if (document.getElementById('tabNav3')!="") {
            document.getElementById('tabNav3').className = tab;
        }
  } 
    
    if (document.getElementById('content_swapper_' + displayProperty)) {
        for (var j=5; j <= 7; j++) {
            if (document.getElementById('content_swapper_' + j)) {
                document.getElementById('content_swapper_' + j).style.position = 'absolute';
                document.getElementById('content_swapper_' + j).style.visibility = 'hidden';
            }
        }
        
        document.getElementById('content_swapper_' + displayProperty).style.position = 'static';
        document.getElementById('content_swapper_' + displayProperty).style.visibility = 'visible';
    }
}
function swapTab4(tab, displayProperty) {
    if (document.getElementById) {
        if (document.getElementById('tabNav4')!="") {
            document.getElementById('tabNav4').className = tab;
        }
  } 
    
    if (document.getElementById('content_swapper_' + displayProperty)) {
        for (var j=8; j <= 10; j++) {
            if (document.getElementById('content_swapper_' + j)) {
                document.getElementById('content_swapper_' + j).style.position = 'absolute';
                document.getElementById('content_swapper_' + j).style.visibility = 'hidden';
            }
        }
        
        document.getElementById('content_swapper_' + displayProperty).style.position = 'static';
        document.getElementById('content_swapper_' + displayProperty).style.visibility = 'visible';
    }
}
function openBrWindow(theURL,winName,features) { //v2.0
    window.open(theURL,winName,features);
}
    
function rollOver(imageName, imageFile) {
    document.images[imageName].src= "/pdn/images/"+imageFile+".gif";
}