//Open new image window
function newImageWindow(type, tbl, img_id, xposition, yposition){
	var isOpera=(navigator.userAgent.indexOf("Opera")!=-1)?true:false;
	var isOpera5=(navigator.appVersion.indexOf("MSIE 5")!=-1 && navigator.userAgent.indexOf("Opera 5")!=-1)?true:false;
	var isOpera6=(navigator.appVersion.indexOf("MSIE 5")!=-1 && navigator.userAgent.indexOf("Opera 6")!=-1)?true:false;
	var isN6=(navigator.userAgent.indexOf("Gecko")!=-1);
	var isN4=(document.layers)?true:false;
	var isMac=(navigator.userAgent.indexOf("Mac")!=-1);
	var isIE=(document.all && !isOpera && (!isMac || navigator.appVersion.indexOf("MSIE 4")==-1))?true:false;
	var str = "_includes/display_image.php?type="+type+"&tbl="+tbl+"&img_id="+img_id+"";

	if (isIE || isOpera6) {
		window.open(str,"Album","toolbar=0,position=relative,status=no,width=525,height=600,left="+(xposition-250)+",top="+(yposition-250));
	} else {
		window.open(str,"Album","toolbar=0,position=relative,status=no,width=525,height=600,screenX="+(xposition-250)+",screenY="+(yposition-250));
	}
}