// this function is for mouseover on index page
  if (document.images){
        browserOK = "Y";
       }
 function ltc(x){
 
	x1=new Image;x1.src="images/r1.jpg";
	x2=new Image;x2.src="images/r2.jpg";
	x3=new Image;x3.src="images/r3.jpg";
	x4=new Image;x4.src="images/r4.jpg";
	x5=new Image;x5.src="images/r5.jpg";



	}
function enable(n) { 
          document.images["side"].src="images/r"+n+".jpg";
	}
function disable(n) {
   	   	     document.images.side.src="images/main_01_02.jpg";
	}