function MM_openBrWindow(theURL,winName,features) { //v2.0
  			window.open(theURL,winName,features);
		}

		function show(bereich) {
 			if(document.getElementById)
   				document.getElementById(bereich).style.visibility = "visible";
		}
		
		function dontshow(bereich) {
                    	if(document.getElementById)
                                document.getElementById(bereich).style.visibility = "hidden";
		}
		// functionen fuer das management der menu-teile
		function dontshow00() {
                        if(document.getElementById)
                                document.getElementById('0-0').style.visibility = "hidden";
                }

		function timeout00() {
			menuaktiv00 = window.setTimeout("dontshow00()",100);

		}

		function keep00() {
			window.clearTimeout(menuaktiv00);
		}
		
                function dontshow10() {
                        if(document.getElementById)
                                document.getElementById('1-0').style.visibility = "hidden";
                }

                function timeout10() {
                        menuaktiv10 = window.setTimeout("dontshow10()",100);

                }

                function keep10() {
                        window.clearTimeout(menuaktiv10);
                }

                function dontshow20() {
                        if(document.getElementById)
                                document.getElementById('2-0').style.visibility = "hidden";
                }

                function timeout20() {
                        menuaktiv20 = window.setTimeout("dontshow20()",100);

                }

                function keep20() {
                        window.clearTimeout(menuaktiv20);
                }

		function dontshow30() {
                        if(document.getElementById)
                                document.getElementById('3-0').style.visibility = "hidden";
                }

                function timeout30() {
                        menuaktiv30 = window.setTimeout("dontshow30()",100);

                }

                function keep30() {
                        window.clearTimeout(menuaktiv30);
                }

		function button0() {
			show('0-0'); dontshow10(); dontshow20(); dontshow30();
		}

		function button1() {
			show('1-0'); dontshow00(); dontshow20(); dontshow30();
                }

		    function button2() {
				show('2-0'); dontshow00(); dontshow10(); dontshow30();
                }

		    function button3() {
				show('3-0'); dontshow00(); dontshow10(); dontshow20();
                }