// JavaScript Document

function changeBgSizeZoom(stat){
 var	cssboxDown=document.getElementById("zoomDownBlock");
 var	cssboxUp=document.getElementById("zoomUpBlock");

 if(stat == "zoomDown") {
 		cssboxDown.style.backgroundPosition="-164px -70px";
 		cssboxUp.style.backgroundPosition="-211px -4px";
	} else if(stat == "zoomUp") {
 		cssboxDown.style.backgroundPosition="-164px -4px";
 		cssboxUp.style.backgroundPosition="-211px -70px";
	} else {
	}
 return;
}

function chgFontSizeZoomUp(id){
	var	cssbox=document.getElementById(id);
	cssbox.style.fontSize="1.2em";
	changeBgSizeZoom("zoomUp");
}

function chgFontSizeZoomDown(id){
	var	cssbox=document.getElementById(id);
	cssbox.style.fontSize="1.0em";
	changeBgSizeZoom("zoomDown");
}