if(navigator.appVersion.charAt(0) >=3) {
var img = new Array();
img[0000] = new Image();  img[0000].src = "index-images/index_tag_work_off.gif";
img[0001] = new Image();  img[0001].src = "index-images/index_tag_work_on.gif";
img[1000] = new Image();  img[1000].src = "index-images/index_tag_business_off.gif";
img[1001] = new Image();  img[1001].src = "index-images/index_tag_business_on.gif";
img[2000] = new Image();  img[2000].src = "index-images/index_tag_overview_off.gif";
img[2001] = new Image();  img[2001].src = "index-images/index_tag_overview_on.gif";
img[3000] = new Image();  img[3000].src = "index-images/index_tag_news_off.gif";
img[3001] = new Image();  img[3001].src = "index-images/index_tag_news_on.gif";
img[4000] = new Image();  img[4000].src = "index-images/index_tag_link_off.gif";
img[4001] = new Image();  img[4001].src = "index-images/index_tag_link_on.gif";
}

function _in(nam,num) {
if(navigator.appVersion.charAt(0) >=3) {
 document.images[nam].src = img[num].src;
 }
}

function _out(nam,num) {
 document.images[nam].src = img[num].src;
}