function doHidePopUp(selectedDiv) {
	popdiv=document.getElementById(selectedDiv)
	popdiv.style.visibility="hidden"
}
	
function doShowPopUp(){
	popdiv=document.getElementById("divpopup")
	popdiv.style.left="50%"
	popdiv.style.marginLeft="-223px"
	if ((is_ie5up) && (is_mac)){ //fix for ie-mac does not accept popdiv.style.top="50%"
		popdiv.style.top="0px"
		popdiv.style.marginTop="0px"
	}else{
		popdiv.style.top="50%"
		popdiv.style.marginTop="-132px"
	}
	popdiv.style.visibility="visible"
}



function doHidePngPopUp(selectedDiv) {
	popdiv=document.getElementById(selectedDiv)
	popdiv.style.visibility="hidden"
}

function popupTimer() { 
	var t=setTimeout("document.getElementById('divpopup').style.display = 'block';",3000);
}