var go = 0;
    var bc = 4;
    var bc2 = 5;	
    var bc3 = 5;		
    var ext = ".gif";
    var bname = "mbtn";
    buttonRollImg = new Array(bc);
    buttonOffImg = new Array(bc);
    buttonOnImg = new Array(bc);
    buttonName = new Array("mbtn1","mbtn2","mbtn3","mbtn4");

    buttonRollImg2 = new Array(bc2);
    buttonName2 = new Array("product_btn1","product_btn2","product_btn3","product_btn4","product_btn5");	
	
    buttonRollImg3 = new Array(bc3);
    buttonName3 = new Array("product_u_btn1","product_u_btn2","product_u_btn3","product_u_btn4","product_u_btn5");	


	function loadImages(){
    for (var i = 1; i <= bc; i++){
	    buttonRollImg[i] = new Image();
    	buttonOffImg[i] = new Image();
        buttonOnImg[i] = new Image();
        buttonRollImg[i].src = path + buttonName[i-1] + "_r" + ext;
        buttonOffImg[i].src = path + buttonName[i-1] + "" + ext;
        buttonOnImg[i].src = path + buttonName[i-1] + "_r" + ext;
        }
		
	for (var i = 1; i <= bc2; i++){
	    buttonRollImg2[i] = new Image();
        buttonRollImg2[i].src = path + buttonName2[i-1] + ext;
        }

	for (var i = 1; i <= bc3; i++){
	    buttonRollImg3[i] = new Image();
        buttonRollImg3[i].src = path + buttonName3[i-1] + ext;
        }
		

    }

    function buttonOff(num){
	    if(go==1){
    		if(aktiv!=num){
            	document.images[bname+num].src=buttonOffImg[num].src;
            	document.images['mbtn5'].src=buttonRollImg2[5].src;	                
            }
            return true;
        }
	}

    function buttonRoll(num){
	    if(go==1){
    		if(aktiv!=num){
            	document.images[bname+num].src=buttonRollImg[num].src;
            	document.images['mbtn5'].src=buttonRollImg2[num].src;				
            }
        }
    }

	function buttonOn(num){
        if(go==1){
    		document.images[bname+num].src=buttonOnImg[num].src;
            return true;
	    }
    }

    function clicked(num){

        if(go==1){   
	        for(i=1; i<=bc; i++){
    	        loeschen(i);
            }
            document.images[bname+num].src=buttonOnImg[num].src;
            aktiv = num;
           	document.images['mbtn5'].src=buttonRollImg2[5].src;				
           	document.images['mbtn6'].src=buttonRollImg3[num].src;							
            return true;
        }
	}

    function loeschen(index){
	    if(go==1){
    	    document.images[bname+index].src=buttonOffImg[index].src;
            return true;
        }
	}
	
    function loeschen2(){
	    if(go==1){
			loeschen(1);
			loeschen(2);
			loeschen(3);
			loeschen(4);									
           	document.images['mbtn5'].src=buttonRollImg2[5].src;				
           	document.images['mbtn6'].src=buttonRollImg3[5].src;	
            return true;
        }
	}