//preload images
var prei = new Array();
function preload(){
	if(navigator.appVersion.charAt(0) >="3"){

		for( i = 0 ; i < 16 ; i++ ){ 
			prei[i] = new Image();
		}
		prei[0].src=  "img/menu1.gif";
		prei[1].src=  "img/menu2.gif";
		prei[2].src=  "img/menu3.gif";
		prei[3].src=  "img/menu4.gif";

		prei[4].src=  "img/menu1_o.gif";
		prei[5].src=  "img/menu2_o.gif";
		prei[6].src=  "img/menu3_o.gif";
		prei[7].src=  "img/menu4_o.gif";

		prei[8].src=  "img/title.gif";
		prei[9].src=  "img/title_o.gif";

		prei[10].src=  "img/spec.gif";
		prei[11].src=  "img/spec_o.gif";

		prei[12].src=  "img/menu1_s.gif";
		prei[13].src=  "img/menu2_s.gif";
		prei[14].src=  "img/menu3_s.gif";
		prei[15].src=  "img/menu4_s.gif";
	}
}

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