if(document.images){
var topmn01on= new Image();
	topmn01on.src= "img/topmn01_on.gif";

var topmn02on= new Image();
	topmn02on.src= "img/topmn02_on.gif";

var topmn03on= new Image();
	topmn03on.src= "img/topmn03_on.gif";
	
var topmn04on= new Image();
	topmn04on.src= "img/topmn04_on.gif";
		
var topmn05on= new Image();
	topmn05on.src= "img/topmn05_on.gif";
}


function rolloverOn(imgName){
    if(document.images){
    document.images[imgName].src= "img/" + imgName + "_on.gif";
    }
}

function rolloverOff(imgName){
    if (document.images){
    document.images[imgName].src= "img/" + imgName + "_off.gif";
    }
}



/* KALƒ‰ƒEƒ“ƒW */
function kal_open(theURL){
var win = window.open(theURL, "kalwin","width=650, height=515, scrollbars=no, resizable=yes");
win.focus();
}