function MsnAlerter(message, tableWidth, tableHeight, interval){
this.message = message;
this.tableWidth = Number(tableWidth);
this.tableHeight = Number(tableHeight);
this.interval = Number(interval);

this.startTop = 0;
this.endTop = 0;
this.intervalObj = null;

this.makeTable = makeTable;
this.startAlert = startAlert;
}

function makeTable(){

var left = Number(document.body.clientWidth) - this.tableWidth;
	alert(left);
this.startTop = Number(document.body.clientHeight);
this.endTop = Number(document.body.clientHeight) - this.tableHeight;

document.write("<table id=msnAlert border=1 width=" + this.tableWidth + " height=" + this.tableHeight);
document.write(" style=\"position:absolute;left:" + left + ";top:" + this.startTop + ";\">");
document.write(" <tr><td>");
document.write(" <span style=cursor:hand; onClick=\"document.all.msnAlert.style.display='none'\">x</span>");
document.write(" </td></tr>");
document.write(" <tr>");
document.write(" <td>");
document.write(this.message);
document.write(" </td>");
document.write(" </tr>");
document.write("</table>");

this.intervalObj = setInterval("scrollIt()", this.interval);
}

function scrollIt(){
var percent = .05 * (msnAlerter.startTop - msnAlerter.endTop);
if(percent > 0)
percent = Math.ceil(percent);
else
percent = Math.floor(percent);

document.all.msnAlert.style.pixelTop -= percent;
msnAlerter.endTop += percent;

window.status = msnAlerter.endTop;

if(msnAlerter.endTop == msnAlerter.startTop - msnAlerter.tableHeight)
clearInterval(msnAlerter.intervalObj);
}

function startAlert(){
this.makeTable();
}