function getTag(el,str) {
while ((el!=null) && (str.indexOf(el.tagName + ":")< 0))
el = el.parentElement
return el
}

function navigateTo(sURL,target) {
if ((target == '_self') || (target=="")) {
window.location.replace(sURL);
return false;
}
if (target == '_top') {
top.window.location.replace(sURL);
return false
}
if (target =='_parent') {
parent.window.location.replace(sURL);
return false;
}
if (target == '_blank' || parent.frames.length < 1) {
window.open(sURL, target);
return false;
}
else {
if (parent.frames[target])
parent.frames[target].location.replace(sURL);
else
window.open(sURL, target);
return false;
}
}

function checkIEClick() {
var el = getTag(event.srcElement,"A:AREA:")
if ((el!=null) && ((el.tagName=="A") || (el.tagName=="AREA"))) {
event.returnValue = false
navigateTo(el.href,String(el.target).toLowerCase())
}
}

function checkNSClick(ev) {
if (ev.target.href) {
navigateTo(ev.target.href,String(ev.target).toLowerCase())
return false
}

}

if ((document.all) || (document.layers))
if (document.layers) {
document.captureEvents(Event.CLICK)
document.onclick = checkNSClick
}
else
document.onclick = checkIEClick