var load_ok = false;

function init(imgbase) {
    if (document.images) {
        img_on  = new Array();
        img_off = new Array();

	 // Init
	img_on['his']   = new Image;
	img_off['his']  = new Image;

	img_on['phi']   = new Image;
	img_off['phi']  = new Image;

	img_on['cui']   = new Image;
	img_off['cui']  = new Image;

	img_on['col']   = new Image;
	img_off['col']  = new Image;

	img_on['ohg']   = new Image;
	img_off['ohg']  = new Image;

	img_on['jpn']   = new Image;
	img_off['jpn']  = new Image;


	// ON Images
	img_on['his'].src   = imgbase + "his_on.gif";
	img_on['phi'].src   = imgbase + "phi_on.gif";
	img_on['cui'].src   = imgbase + "cui_on.gif";
	img_on['col'].src   = imgbase + "col_on.gif";
	img_on['ohg'].src   = imgbase + "ohg_on.gif";
	img_on['jpn'].src   = imgbase + "jpn_on.gif";

	// OFF Images
	img_off['his'].src  = imgbase + "his_of.gif";
	img_off['phi'].src   = imgbase + "phi_of.gif";
	img_off['cui'].src  = imgbase + "cui_of.gif";
	img_off['col'].src  = imgbase + "col_of.gif";
	img_off['ohg'].src  = imgbase + "ohg_of.gif";
	img_off['jpn'].src  = imgbase + "jpn_of.gif";

load_ok = true;
    }
}

function imgFocus(fid) {
    if (document.images && load_ok) {
        document.images[fid].src = img_on[fid].src;
    }
}

function imgBlur(fid) {
    if (document.images && load_ok) {
        document.images[fid].src = img_off[fid].src;
    }
}


var img = new Array;

img[0] = "images/t_img01.jpg";
img[1] = "images/t_img02.jpg";
img[2] = "images/t_img03.jpg";
img[3] = "images/t_img04.jpg";
img[4] = "images/t_img05.jpg";
function random_img(){
        var i = myrandom(img.length) - 1;
        document.write("<IMG SRC=\""+img[i]+"\">");
}
function myrandom(max){
        var v = max * Math.random();
        if(v == 0.0){v = 1;}else{v = Math.ceil(v);}
        return v;
}