function swap(what)
{
document.getElementById('swap1').style.display='none';
document.getElementById('swap2').style.display='none';
document.getElementById('swap3').style.display='none';
document.getElementById('swap'+what).style.display='block';

document.getElementById('swaplink1').style.cssText = "background:url('Images/blacktab_bg.jpg') repeat-x;";
document.getElementById('swaplinkside1').style.cssText = "background:url('Images/blacktab_left.gif') no-repeat;";
document.getElementById('swaplink2').style.cssText = "background:url('Images/blacktab_bg.jpg') repeat-x;";
document.getElementById('swaplinkside2').style.cssText = "background:url('Images/blacktab_left.gif') no-repeat;";
document.getElementById('swaplink3').style.cssText = "background:url('Images/blacktab_bg.jpg') repeat-x;";
document.getElementById('swaplinkside3').style.cssText = "background:url('Images/blacktab_left.gif') no-repeat;";

document.getElementById('swaplink'+what).style.cssText = "background:url('Images/redtab_bg.jpg') repeat-x;";
document.getElementById('swaplinkside'+what).style.cssText = "background:url('Images/redtab_left.gif') no-repeat;";

document.getElementById('link1').style.cssText = "color:#9d9d9d;";
document.getElementById('link2').style.cssText = "color:#9d9d9d;";
document.getElementById('link3').style.cssText = "color:#9d9d9d;";
document.getElementById('link'+what).style.cssText = "color:#ffffff;";

}

var createStyle = document.createElement('style');
var createStyleProp = document.createTextNode('.hidden { display:none; }');
//createStyle.appendChild(createStyleProp);
document.getElementsByTagName('head')[0].appendChild(createStyle);