function showimage(show_orders){    clearTimeout(timer);  if(show_orders!=public_show_orders)  {	public_show_orders=show_orders;	i_strngth=-20;	hideimage();  }else{        if(document.all("testimage")&&control_flag==0)    {      if (i_strngth <=110){      img_div1.style.setAttribute("filter","alpha(opacity="+i_strngth+")");      i_strngth=i_strngth+10;       timer=setTimeout("showimage(public_show_orders)",show_speed);                           }else {       timer=setTimeout("hideimage(public_show_orders)",pic_remain_time);                           }    }else if(control_flag==1){    	if (i_image>imageurl.length||i_image==imageurl.length){i_image=0;}	    else if(i_image<0){i_image=imageurl.length-1;}	    else{"分支问题，检查showimage函数第三个分支项！"};    }else if(control_flag==2){    }else{      alert("分支问题，检查showimage函数第三个分支项！");    }  }}function hideimage() {   clearTimeout(timer);  if(document.all("testimage")&&control_flag==0) {                        if (i_strngth >=-10)                        {                            img_div1.style.setAttribute("filter","alpha(opacity="+i_strngth+")");                            i_strngth=i_strngth-10;                             timer=setTimeout("hideimage()",show_speed);                        }else{									 enumerate_pics();	                              if(sequence_flag=="clock")								  {									 move_scroll_up();	                                 i_image++;									 if (i_image>imageurl.length||i_image==imageurl.length){i_image=0;}                                     i_strngth=1;	                              }else if(sequence_flag=="anti_clock"){								     move_scroll_down();								     i_image--;									 if (i_image<0){i_image=imageurl.length-1;}                                     i_strngth=1;								  }                            when_do_pic();                            timer=setTimeout("showimage(public_show_orders)",interval_speed);							get_now_page_number();                        } }else if(control_flag==1){	i_image=0; }else if(control_flag==2){ }else{    alert("分支问题，检查hideimage函数第三个分支项！"); }}	