// Nutzung:
// 
var popbackground="white"; //specify backcolor or background image for pop window
var windowtitle="Großansicht"; //pop window title
function detectexist(obj){
return (typeof obj !="undefined");
}
function jkpopimage(imgpath, popwidth, popheight, textdescription) {
function getpos(){
leftpos=(detectexist(window.screenLeft))? screenLeft+document.body.clientWidth/2-popwidth/2 : detectexist(window.screenX)? screenX+innerWidth/2-popwidth/2 : 0;
// variable Position führt dazu, dass das Bild zu tief erscheint
// toppos=(detectexist(window.screenTop))? screenTop+document.body.clientHeight/2-popheight/2 : detectexist(window.screenY)? screenY+innerHeight/2-popheight/2 : 0;
toppos=(detectexist(window.screenTop))? 200 : detectexist(window.screenY)? screenY+innerHeight/2-popheight/2 : 0;
if (window.opera){
leftpos-=screenLeft;
toppos-=screenTop+15;
}
}
getpos();
var winattributes='width='+popwidth+',height='+popheight+',resizable=yes,left='+leftpos+',top='+toppos;
var bodyattribute=(popbackground.indexOf(".")!=-1)? 'background="'+popbackground+'"' : 'bgcolor="'+popbackground+'"';
if (typeof jkpopwin=="undefined" || jkpopwin.closed) {
jkpopwin=window.open("","",winattributes);
} else {
jkpopwin.resizeTo(popwidth+10, popheight+30);
}
jkpopwin.document.open();
jkpopwin.document.write(''+windowtitle+'
'+textdescription+'
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