function cngimg(n){
	var imgsrc = document.images[n].src;
	if(imgsrc.indexOf("_on") < 0){
		document.images[n].src=imgsrc.substring(0,imgsrc.length-4) +"_on.gif";
	}
	else{
		document.images[n].src=imgsrc.substring(0,imgsrc.length-7) +".gif";
	}
}
function disp(url){ 
    	 
window.open(url, "sub_window", "width=450,height=356,scrollbars=no,top=0");

} 

function disp01(url){ 
window.open(url, "sub_window", "width=500,height=720,scrollbars=yes,top=0"); 
}

function disp02(url){ 
window.open(url, "sub_window", "width=300,height=330,scrollbars=no,top=0"); 
}