Collapsing show() and hide() functions into one?

[Mistrel]

I'm using the following script to show/hide a particular element on my website. How would I collapse these two functions into one?

(if hidden, unhide. if visible, hide)

function show(){
document.getElementById("live").style.visibility="visible"
}


function hide(){
document.getElementById("live").style.visibility="hidden"
}

[jscheuer1]

function showhide(){
var el=document.getElementById('live').style;
el.visibility=el.visibility=='hidden'? 'visible' : 'hidden';
}

[Mistrel]

Thank you!! ^^

I wanted to use this for several elements so I modified it a bit. This is the final snippet:

function showhide(id){
var el=document.getElementById(id).style;
el.visibility=el.visibility=='hidden'? 'visible' : 'hidden';}
</script>