var img=new Array();
var okay=0;

function ro_init(){  
	img[0]=new Image;
	img[0].src='/images/more.gif'
	img[1]=new Image;
	img[1].src='/images/more_1.gif'
	okay=1;
}  

function ro_over(iid) {
  if (okay){
    document.images[iid].src=img[1].src;
  }
}

function ro_out(iid) {
  if (okay){
    document.images[iid].src=img[0].src;
  }
}