function opacity(id, opacStart, opacEnd, millisec) {
	//speed for each frame
	var speed = Math.round(millisec / 100);
	var timer = 0;

	//determine the direction for the blending, if start and end are the same nothing happens
	if(opacStart > opacEnd) {
		for(i = opacStart; i >= opacEnd; i--) {
			setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
			timer++;
		}
	} else if(opacStart < opacEnd) {
		for(i = opacStart; i <= opacEnd; i++)
			{
			setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
			timer++;
		}
	}
}

//change the opacity for different browsers
function changeOpac(opacity, id) {
	var object = document.getElementById(id).style; 
	object.opacity = (opacity / 100);
	object.MozOpacity = (opacity / 100);
	object.KhtmlOpacity = (opacity / 100);
	object.filter = "alpha(opacity=" + opacity + ")";
    if (opacity == 0)
        document.getElementById(id).style.display = "none";
    else
        document.getElementById(id).style.display = "block";
}

function shiftOpacity(id, millisec) {
	//if an element is invisible, make it visible, else make it ivisible
	if(document.getElementById(id).style.opacity == 0) {
		opacity(id, 0, 100, millisec);
	} else {
		opacity(id, 100, 0, millisec);
	}
}

function blendimage(divid, imageid, imagefile, millisec) {
	var speed = Math.round(millisec / 100);
	var timer = 0;
	
	//set the current image as background
	document.getElementById(divid).style.backgroundImage = "url(" + document.getElementById(imageid).src + ")";
	
	//make image transparent
	changeOpac(0, imageid);
	
	//make new image
	document.getElementById(imageid).src = imagefile;

	//fade in image
	for(i = 0; i <= 100; i++) {
		setTimeout("changeOpac(" + i + ",'" + imageid + "')",(timer * speed));
		timer++;
	}
}

function currentOpac(id, opacEnd, millisec) {
	//standard opacity is 100
	var currentOpac = 100;
	
	//if the element has an opacity set, get it
	if(document.getElementById(id).style.opacity < 100) {
		currentOpac = document.getElementById(id).style.opacity * 100;
	}

	//call for the function that changes the opacity
	opacity(id, currentOpac, opacEnd, millisec)
}


function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

function eraseCookie(name) {
	createCookie(name,"",-1);
}


function ShowMsg() 
{
    var d;
    if(document.getElementById("ux_md"))
    {
        d=document.getElementById("ux_md");
    }
    else
    {
        var d=document.createElement("DIV");
        d.id="ux_md";
        document.body.appendChild(d);
    }
    d.style.position="absolute";
    d.style.width="500px";
    d.style.height="300px";
    d.style.background="#FFFFCC";
    d.style.zIndex="1000";
    d.style.borderWidth="4px";
    d.style.borderColor="#FF6600";
    d.style.borderStyle="solid";
    //d.innerHTML="<iframe src='http://www.uconomix.com' width='100%' frameborder='0' height='100%'></iframe>";

    var c = "<table width='100%' height='100%' cellpadding='5' cellspacing='5'>";
    c += "<tr><td align='left' valign='top'><font face='arial' size='5' color='#0099FF'><b>Christmas Season Mega Discounts!</b></font></td></tr>";
    c += "<tr><td align='left' valign='top'><font face='arial' color='#808080' size='3'><b>This Christmas get a fabulous <font color='red'>discount</font> on all our software. Dec 18 thorugh 31 - the earlier you buy, the more you save.</b></font></td></tr>";
    c += "<tr><td align='left' valign='top'><font face='arial' color='#808080' size='3'><b><a href='http://www.uconomix.com/XMAS2008.htm'>Know more about the offer</a></td></tr>";
    c += "<tr><td align='left' valign='top'><font face='arial' color='#808080' size='3'><b>Use the coupon code <font color='blue'>XMAS2008</font> at the time of checkout to avail of the discount.</b></font></td></tr>";
    c += "<tr><td align='center'><input type='button' value='Close this message' onclick='Close()'></td></tr></table>";
    d.innerHTML = c;


    var winW = 630, winH = 460;

    if (parseInt(navigator.appVersion)>3) 
    {
        if (navigator.appName=="Netscape") 
        {
            winW = window.innerWidth;
            winH = window.innerHeight;
        }
        if (navigator.appName.indexOf("Microsoft")!=-1) 
        {
            winW = document.body.offsetWidth;
            winH = document.body.offsetHeight;
        }
    }



    d.style.left = (parseInt(winW) - parseInt(d.style.width))/2 + parseInt(document.body.scrollLeft) + "px";
    d.style.top = (parseInt(winH) - parseInt(d.style.height))/2 + parseInt(document.body.scrollTop) + "px";
    
    d.style.opacity = 0;
	d.style.MozOpacity = 0;
	d.style.KhtmlOpacity = 0;
	d.style.filter = "alpha(opacity=0)";

    currentOpac('ux_md', 100, 1000);
}

function g()
{
    alert(document.body.scrollTop);
}

function Close()
{
    currentOpac('ux_md', 0, 1000);
}

function ShowOnLoad() 
{
    return;
    var i=readCookie("ux_msg");
    if (i != "1")
    {    
        createCookie("ux_msg","1",0);
        ShowMsg();
    }
}