var preloaded_imgs=new Array();

function preload(path) 
 { 
	var args=preload.arguments;
	for( i=1;i<args.length;i++)
	{
		preloaded_imgs[(path+args[i])] = new Image; 
		preloaded_imgs[(path+args[i])].src = path+args[i]; 
	}
 }

function swap(which,url) 
 {
	objStr=document.images[which];
   	if(NAV4)
	{
  	  	for(i=0;i<document.layers.length;i++)
   	  	 if(document.layers[i].document[which])objStr=document.layers[i].document[which];		
	}
	obj=eval(objStr);
	obj.src=url;
 }