var overcolor = '#E0E0E0';
var outcolor = '#FFFFFF';
var browser_name = navigator.appName;
var browser_version = parseFloat(navigator.appVersion); 

ie = (document.getElementById)? true : false;
nn4 = (document.layers)? true : false;
ie4 = (!ie && document.all)? true : false;

function Svet(n,x)
{        if (x == 'over') {
        if(ie) document.getElementById(n).style.backgroundColor = overcolor; 
        if(ie4) document.all[n].style.backgroundColor = overcolor;
        if(nn4) document.layers[n].bgColor = overcolor; 
        }
        else {
        if(ie) document.getElementById(n).style.backgroundColor = outcolor;
        if(ie4) document.all[n].style.backgroundColor = outcolor;
        if(nn4) document.layers[n].bgColor = outcolor; 
        }
}