//WINDOW OPEN
function winopen(url,winname,option){
	window.open(url,winname,option)
}

//COMMON MENU ----------------------
if(navigator.appVersion.charAt(0) >=3){
	var btnimg = new Array();

	for( i = 0 ; i < 8 ; i++ ){
		btnimg[i] = new Image();
	}
	
	//LOAD IMAGE
	btnimg[0].src= "img/navi01.gif";
	btnimg[1].src= "img/navi01_on.gif";
	btnimg[2].src= "img/navi02.gif";
	btnimg[3].src= "img/navi02_on.gif";
	btnimg[4].src= "img/navi03.gif";	
	btnimg[5].src= "img/navi03_on.gif";
	btnimg[6].src= "img/navi04.gif";
	btnimg[7].src= "img/navi04_on.gif";

}
function chgnavi(dim,cnt){
    if(navigator.appVersion.charAt(0) >= 3 ){
        document.images[dim].src=btnimg[cnt].src;
    }
}