function newpopup(url,name,win_height,win_width) {
				pos_horizon = ((screen.width/2)-(win_width/2));
				pos_vertical = ((screen.height/2)-(win_height/2));
				window.open(url,name,"width="+win_width+",height="+win_height+",top="+pos_vertical+",left="+pos_horizon+",status=no,toolbar=no,menubar=no,location=no");
			}

			minurl = "";
			w = "";
			h = "";
			alt = "";

			function oPopup(x,w,h,alt) {
				WindowObjectReference = window.open(
				"show_picture.asp?pid=" + x + "&alt=" + alt,
				"DescriptiveWindowName",
				"width=" + w + ",height=" + h + ",resizable,scrollbars=no,status=1,left=100,top=100"
				);
			}

			function myFunction1(np,nl,nw,nh,nalt) {
				window.document.images['mitbillede'].src = np;
				window.document.images['mitbillede'].alt = nalt;
				minurl = nl;
				w = nw;
				h = nh;
				alt = nalt;
			}
		
			function gotos() {
				oPopup(minurl,w,h,alt);
			}