imgDir = "images/"
ImgExt = ".gif#"

// preLoadI = 0 


function preLoad()
{
	if( !document.images ) return // exit if not supported
	var i, n, src
	for( i=0, n=preLoad.arguments.length ; i<n ; i++ )
		{ 
			src = preLoad.arguments[i] 
			eval( 'i_' +src+ ' = new Image()' )
			eval( 'i_' +src+ '.src = imgDir + "' +src+ '.gif"' )
		}
}

function set( img, src )
{ 
	if( !document.images ) return
	document.images[img].src = imgDir + src + ".gif"

} 

preLoad( "navhomeoff", "navjson", "navfullon", "navbasicon", "navpccuon", "navpwon", "navcuon" )