/* 
	hack to keep netscape happy (or at least quiet) when it encounters rollovers in divs
*/

// Preload the on states of the tabs for quicker response

image_news = new Image();
image_news.src = "http://i.cmpnet.com/intelligententerprise/jstopnav/newsOn.gif";

image_community = new Image();
image_community.src = "http://i.cmpnet.com/intelligententerprise/jstopnav/communityOn.gif";

image_events = new Image();
image_events.src = "http://i.cmpnet.com/intelligententerprise/jstopnav/eventsOn.gif";

image_browse = new Image();
image_browse.src = "http://i.cmpnet.com/intelligententerprise/jstopnav/browseOn.gif";

image_resources = new Image();
image_resources.src = "http://i.cmpnet.com/intelligententerprise/jstopnav/resourcesOn.gif";

image_subscribe = new Image();
image_subscribe.src = "http://i.cmpnet.com/intelligententerprise/jstopnav/subscribeOn.gif";

// Pass in the random frequencies of the tabs

var news_freq = 10; 
var community_freq = 20; 
var events_freq = 30; 
var browse_freq = 40; 
var resources_freq = 60; 
var subscribe_freq = 100; 


// Pass in the URL of the image which should appear on each tab

//var chicagologo = 'http://i.cmpnet.com/insurancetech/msvalue/logo_windows.gif';
//var nyclogo = 'http://i.cmpnet.com/insurancetech/msvalue/logo_security.gif';



// Random Equation which determines which tab to show
var randomColoredTab;
var randomColoredSeed = Math.ceil(100*Math.random(100));
if (randomColoredSeed <= news_freq) {
randomColoredTab = 'news';
} else if (randomColoredSeed <= community_freq) {
randomColoredTab = 'community';
} else if (randomColoredSeed <= events_freq) {
randomColoredTab = 'events';
} else if (randomColoredSeed <= browse_freq) {
randomColoredTab = 'browse';
} else if (randomColoredSeed <= resources_freq) {
randomColoredTab = 'resources';
} else {
randomColoredTab = 'subscribe';
}

// Function which actually swaps tabs
function changeColoredTab (tabname) {
document.getElementById('tab_news').style.display = 'none';
document.getElementById('tab_community').style.display = 'none';
document.getElementById('tab_events').style.display = 'none';
document.getElementById('tab_browse').style.display = 'none';
document.getElementById('tab_resources').style.display = 'none';
document.getElementById('tab_subscribe').style.display = 'none';
document.getElementById('tab_'+tabname).style.display = 'block';

document.getElementById('tabnav_news').src = 'http://i.cmpnet.com/intelligententerprise/jstopnav/newsOff.gif';
document.getElementById('tabnav_community').src = 'http://i.cmpnet.com/intelligententerprise/jstopnav/communityOff.gif';
document.getElementById('tabnav_events').src = 'http://i.cmpnet.com/intelligententerprise/jstopnav/eventsOff.gif';
document.getElementById('tabnav_browse').src = 'http://i.cmpnet.com/intelligententerprise/jstopnav/browseOff.gif';
document.getElementById('tabnav_resources').src = 'http://i.cmpnet.com/intelligententerprise/jstopnav/resourcesOff.gif';
document.getElementById('tabnav_subscribe').src = 'http://i.cmpnet.com/intelligententerprise/jstopnav/subscribeOff.gif';

document.getElementById('tabnav_'+tabname).src = 'http://i.cmpnet.com/intelligententerprise/jstopnav/'+tabname+'On.gif';
//document.getElementById('logo_'+tabname).src = eval(tabname+'logo');
}