Uncle Jims Javascript Designs: Custom Javascript Alert

COPY - Insert Inside Body: <BODY></BODY>

<STYLE type="text/css">
.okButton {
background-color: #D4D4D4;
font-color: #000000;
font-size: 9pt;
font-family: arial;
width: 70px;
height:	20px;  
}
.alertTitle {
background-color: #3C56FF;
font-family: arial;
font-size: 9pt;
color: #FFFFFF;
font-weight: bold;
}
.alertMessage {
font-family: arial;
font-size: 9pt;
color: #000000;
font-weight: normal;
}
.alertBoxStyle {
cursor: default;
filter: alpha(opacity=90);
background-color: #E4E4E4;
position: absolute;
top: 200px;
left: 200px;
width: 100px;
height: 50px;
visibility:hidden; z-index: 999;
border-style: groove;
border-width: 5px;
border-color: #FFFFFF;
text-align: center;
}
</STYLE>
<div id="alertLayer" class=alertBoxStyle></div>
<SCRIPT LANGUAGE="JavaScript">
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%>" +
"<tr height=5><td colspan=4 class=alertTitle>" + " " + aTitle + "</td></tr>" +
"<tr height=5><td width=5></td></tr>" +
"<tr><td width=5></td><td width=20 align=left><img src='alert.gif'></td><td align=center class=alertMessage>" + aMessage + "<BR></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 = (thisText * 5) + 80;
aHeight = 100;
if (aWidth < 150){ aWidth = 200; }
if (aWidth > 350){ aWidth = 350; }
if (thisText > 60){ aHeight = 110; }
if (thisText > 120){ aHeight = 130; }
if (thisText > 180){ aHeight = 150; }
if (thisText > 240){ aHeight = 170; }
if (thisText > 300){ aHeight = 190; }
if (thisText > 360){ aHeight = 210; }
if (thisText > 420){ aHeight = 230; }
if (thisText > 490){ aHeight = 250; }
if (thisText > 550){ aHeight = 270; }
if (thisText > 610){ aHeight = 290; }

alertBox.width = aWidth;
alertBox.height = aHeight;
alertBox.left = (document.body.clientWidth - aWidth)/2;
alertBox.top = (document.body.clientHeight - aHeight)/2;

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'); 
</SCRIPT>

Uncle Jim's Javascript Designs