function BrowserCheck() {
var b = navigator.appName;
if (b == "Netscape") this.b = "NS";
else if (b == "Microsoft Internet Explorer") this.b = "IE";
else this.b = b;
this.v = parseInt(navigator.appVersion);
this.NS = (this.b == "NS" && this.v>=4);
this.NS4 = (this.b == "NS" && this.v == 4);
this.NS5 = (this.b == "NS" && this.v == 5);
this.IE = (this.b == "IE" && this.v>=4);
this.IE4 = (navigator.userAgent.indexOf('MSIE 4')>0);
this.IE5 = (navigator.userAgent.indexOf('MSIE 5')>0);
if (this.IE5 || this.NS5) this.VER5 = true;
if (this.IE4 || this.NS4) this.VER4 = true;
this.OLD = (! this.VER5 && ! this.VER4) ? true : false;
this.min = (this.NS||this.IE);
}
is = new BrowserCheck();
alertBox = (is.VER5) ? document.getElementById("alertLayer").style
: (is.NS) ? document.layers["alertLayer"]
: document.all["alertLayer"].style;

function hideAlert(){
alertBox.visibility = "hidden";}

function makeAlert(aTitle,aMessage){
document.all.alertLayer.innerHTML = "<table border=0 width=100% height=100% bgcolor=#FFFF00>" +
"<tr height=5><td colspan=4 align=center><font face=verdana color=red size=2>" + " " + aTitle + "</font></td></tr>" +
"<tr height=5><td width=5></td></tr>" +
"<tr><td width=5%></td><td align=left><font face=verdana color=red size=2>" + aMessage + "</font><BR></td><td width=20% align=left><img src='../images/cheepa-frontpage.gif'></td><td width=5%></td></tr>" + 
"<tr height=5><td width=5></td></tr>" +
"<tr><td width=5></td><td colspan=2 align=center><input type=button value='OK' onClick='hideAlert()' class=okButton><BR></td><td width=5></td></tr>" +
"<tr height=5><td width=5></td></tr></table>";
thisText = aMessage.length;
if (aTitle.length > aMessage.length){ thisText = aTitle.length; }

aWidth = 300;
aHeight = 100;

alertBox.width = aWidth;
alertBox.height = aHeight;
alertBox.left = 400;
alertBox.top = 800;

alertBox.visibility = "visible";
}

// WHEN YOU WANT TO GENERATE AN ALERT DO THIS:
// CALL THE makeAlert FUNCTION AND PASS THE ALERT TITLE AND THE MESSAGE
// TO THE FUNCTION.
// eg. makeAlert('My Alert Title' , 'My Alert Message');