var azione=0,posc1=0,posc2=0;function sposta(obj){if(azione)return;if(obj.id=="colonna1"){if(posc1==0)imposta(1,obj);if(posc2==1){obj=document.getElementById("colonna2");imposta(-1,obj);}else if(posc1==1)return;}else if(obj.id=="colonna2"&&posc2==0){imposta(1,obj);}else if((obj.id=="colarea"||obj.id=="colonna3")&&(posc2==1||posc1==1)){if(posc1==1){obj=document.getElementById("colonna1");imposta(-1,obj);}if(posc2==1){obj=document.getElementById("colonna2");imposta(-1,obj);}}}function imposta(dir,obj){var verso=-2*dir;if(dir==1){var stop=11;if(obj.id=="colonna2")stop=31;}else{var stop=30;if(obj.id=="colonna2")stop=47;}azione=1;var xp=parseInt(obj.style.left);var objid=obj.id;muovi(objid,xp,verso,stop);}function muovi(objid,xp,verso,stop){xp+=verso;document.getElementById(objid).style.left=xp+"%";if((verso<0&&xp>stop)||(verso>0&&xp<stop)){setTimeout("muovi('"+objid+"',"+xp+","+verso+","+stop+")",25);}else{azione=0;if(objid=="colonna1")verso>0?posc1=0:posc1=1;else if(objid=="colonna2")verso>0?posc2=0:posc2=1;}}