<!--var myImg=new Array();function set_img(){	var bt_num = 0;	for(var i = 0; i < document.images.length; i++){		if(document.images[i].name != ""){			if(document.images[i].name == page_name){				document.images[page_name].src = document.images[page_name].src.replace(/(\.gif$|\.jpg$|\.jpeg$|\.png$)/, "_r$1");			}else{				var num = document.images[i].name.match(/\d+$/);				myImg[num] = new Array(document.images[i].src, document.images[i].src.replace(/(\.gif$|\.jpg$|\.jpeg$|\.png$)/, "_r$1"));			}		}	}}function roll_img(name,sw){	var num=name.match(/\d+$/);		try{		if(name == page_name || myImg[num][1] == ''){					}else if(sw=='on'){			document.images[name].src=myImg[num][1];		}else if(sw == 'off'){			document.images[name].src=myImg[num][0];		}	}	catch(e){			}}//-->