function fold_left_bookmargin(){  var left_loc=null;
  var left_loc_pos=null;
  left_book_margin_fold=true;  for(i=1;i<78;i++)  {   if(i!=70&&i!=71&&i!=72&&i!=73&&i!=74&&i!=75)   {	  left_loc=document.all["div"+i].currentStyle.left;	  left_loc_pos=left_loc.indexOf("px");	  left_loc=left_loc.substring(0,left_loc_pos);      if(left_loc<200)	  {	    document.all["div"+i].style.zIndex=document.all["div"+i].style.zIndex-20;		continue;	  }else	  {	    left_loc=parseInt(left_loc)-200;		document.all["div"+i].style.left=left_loc+"px";		continue;	   }   }else{     continue;   }  }	  	  div21.style.visibility="hidden";	  div21.style.display="none";	  div24.style.visibility="hidden";	  div24.style.display="none";	  div70.style.visibility="hidden";	  div70.style.display="none";	  div71.style.visibility="visible";	  div71.style.display="block";	  div72.style.visibility="hidden";	  div72.style.display="none";	  div73.style.visibility="hidden";	  div73.style.display="none";	  div74.style.visibility="hidden";	  div74.style.display="none";	  div58.style.visibility="hidden";	  div58.style.display="none";	  div_style_left_47=div_style_left_47-200;	  public_if_fold=1;	  new_boundary();	  new_los_pos_loc();}function unfold_left_bookmargin(){  var left_loc=null;
  var left_loc_pos=null;
  left_book_margin_fold=false;  for(i=1;i<78;i++)  {   if(i!=70&&i!=71&&i!=72&&i!=73&&i!=74&&i!=75)   {	  left_loc=document.all["div"+i].currentStyle.left;	  left_loc_pos=left_loc.indexOf("px");	  left_loc=left_loc.substring(0,left_loc_pos);      if(document.all["div"+i].style.zIndex<(-10))	  {		 document.all["div"+i].style.zIndex=document.all["div"+i].style.zIndex+20;		 continue;	   }else	   {	     left_loc=parseInt(left_loc)+200; 		 document.all["div"+i].style.left=left_loc+"px";		 continue;	   }    }else{     continue;   }  }   	  div21.style.visibility="visible";	  div21.style.display="block";	  div24.style.visibility="visible";	  div24.style.display="block";	  div70.style.visibility="visible";	  div70.style.display="block";	  div71.style.visibility="hidden";	  div71.style.display="none";	  div72.style.visibility="visible";	  div72.style.display="block";	  div73.style.visibility="visible";	  div73.style.display="block";	  div74.style.visibility="visible";	  div74.style.display="block";	  	  div58.style.visibility="visible";	  div58.style.display="block";	  div_style_left_47=div_style_left_47+200;	  public_if_fold=0;	  new_boundary();	  	  reset_los_pos_loc();}function new_los_pos_loc(){  left_px_s=left_px_s-200;  temp_location_left=temp_location_left-200;}function reset_los_pos_loc(){  left_px_s=left_px_s+200;  temp_location_left=temp_location_left+200;}function judge_layers(){    if(control_flag==0||control_flag==1||control_flag==-1)  {	 div59.style.zIndex=5; 	  }  else if(control_flag==2)  {	 div59.style.zIndex=-1; 	  }  else  {    alert("无此状态 control_flag变量，14lay_out.js的judge_layers函数。");	  }}