function getWindowHeight()
{
    var windowHeight=0;
    if (typeof(window.innerHeight)=='number')
    {
        windowHeight=window.innerHeight;
    }
    else
    {
        if (document.documentElement&&
        document.documentElement.clientHeight)
        {
            windowHeight=document.documentElement.clientHeight;
        }
        else
        {
            if (document.body&&document.body.clientHeight)
            {
                windowHeight=document.body.clientHeight;
            }
        }
    }
    return windowHeight;
}
function setFooter()
{
    if (document.getElementById)
    {
        var windowHeight=getWindowHeight();
        if (windowHeight>0)
        {
			var wrapperHeight = document.getElementById('wrapper').offsetHeight;            
            var footerElement=document.getElementById('footer');
            var footerHeight=footerElement.offsetHeight;			
		   if(windowHeight - wrapperHeight >= 0)
            {
                footerElement.style.position='relative';
				footerElement.style.top = (windowHeight - wrapperHeight) + 'px';
            }
            else
            {
                footerElement.style.position='static';
            }			
        }
    }
}
window.onload = function() {
  setFooter();
if(typeof init == "function")
  init();
}
window.onresize = function() {
  setFooter();
}