// display decision alert box
function decision(message, url){
	if(confirm(message)) location.href = url;
}

// open browser window
function openPopUp(url, windowName, w, h, scrollbar) {
           var winl = (screen.width - w) / 2;
           var wint = (screen.height - h) / 2;
           var winprops = 'height='+h+',width='+w+',top='+wint+',left='+winl+',scrollbars='+scrollbar
		   var win = window.open(url, windowName, winprops);
}

function getImage(url,elmid) {
	document.getElementById(elmid).setAttribute('src',url);
	return false;
}