function open_win_01() {
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function open_win_02() {
                window.open("ferienhaus-jui/grundriss-3.htm","","height=300,width=600,left=100,top=100,status=no,toolbar=no,menu=no")
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function open_win_03() {
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function open_win_04() {
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function open_win_05() {
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