function fnonkeydown() {
                el=event.srcElement;
                k=event.keyCode;
                window.status=k;
                                
				if (k==32) {
				 fndblclick();
				 event.returnValue=false;
				}
                          
                c=el.parentElement;
                ri=c.parentElement.rowIndex;
                ci=c.cellIndex;
 
                rrecs=SUDOKU.rows;
 
                timer_start();
                
                if (k==40) {
                    if (ri==8) {
                        ri=0;
                    } else {
                        ri++;
                    }
                    r=rrecs(ri);
                    c=r.cells(ci);
                    cel=c.firstChild;
 
                    if (cel.typ=="dval") {
                        if (ri==8) {
                            ri=0;
                        } else {
                            ri++;
                        }                    
                    }
                    r=rrecs(ri);
                    c=r.cells(ci);
                    cel=c.firstChild;
 
                    if (cel.typ=="dval") {
                        if (ri==8) {
                            ri=0;
                        } else {
                            ri++;
                        }                    
                    }
                    r=rrecs(ri);
                    c=r.cells(ci);
                    cel=c.firstChild;
 
                    if (cel.typ=="dval") {
                        if (ri==8) {
                            ri=0;
                        } else {
                            ri++;
                        }                    
                    }
                    r=rrecs(ri);
                    c=r.cells(ci);
                    cel=c.firstChild;
 
                    if (cel.typ=="dval") {
                        if (ri==8) {
                            ri=0;
                        } else {
                            ri++;
                        }                    
                    }
                    r=rrecs(ri);
                    c=r.cells(ci);
                    cel=c.firstChild;
 
                    cel.focus();
                    cel.select();
                    
                    window.status=k+" "+ri;
 
                } else if (k==38) {
                    if (ri==0) {
                        ri=8;
                    } else {
                        ri--;
                    }
                    r=rrecs(ri);
                    c=r.cells(ci);
                    cel=c.firstChild;
 
                    if (cel.typ=="dval") {
                        if (ri==0) {
                            ri=8;
                        } else {
                            ri--;
                        }                    
                    }
                    r=rrecs(ri);
                    c=r.cells(ci);
                    cel=c.firstChild;
 
                    if (cel.typ=="dval") {
                        if (ri==0) {
                            ri=8;
                        } else {
                            ri--;
                        }                    
                    }
                    r=rrecs(ri);
                    c=r.cells(ci);
                    cel=c.firstChild;
 
                    if (cel.typ=="dval") {
                        if (ri==0) {
                            ri=8;
                        } else {
                            ri--;
                        }                    
                    }
                    r=rrecs(ri);
                    c=r.cells(ci);
                    cel=c.firstChild;
 
                    if (cel.typ=="dval") {
                        if (ri==0) {
                            ri=8;
                        } else {
                            ri--;
                        }                
                    }
                    r=rrecs(ri);
                    c=r.cells(ci);
                    cel=c.firstChild;
 
                    cel.focus();
                    cel.select();
                    
 
                } else if (k==37) {
                    if (ci==0) {
                        ci=8;
                    } else {
                        ci--;
                    }
                    r=rrecs(ri);
                    c=r.cells(ci);
                    cel=c.firstChild;
 
                    if (cel.typ=="dval") {
                        if (ci==0) {
                            ci=8;
                        } else {
                            ci--;
                        }                    
                    }
                    r=rrecs(ri);
                    c=r.cells(ci);
                    cel=c.firstChild;
 
                    if (cel.typ=="dval") {
                        if (ci==0) {
                            ci=8;
                        } else {
                            ci--;
                        }                    
                    }
                    r=rrecs(ri);
                    c=r.cells(ci);
                    cel=c.firstChild;
 
                    if (cel.typ=="dval") {
                        if (ci==0) {
                            ci=8;
                        } else {
                            ci--;
                        }                    
                    }
                    r=rrecs(ri);
                    c=r.cells(ci);
                    cel=c.firstChild;
 
                    if (cel.typ=="dval") {
                        if (ci==0) {
                            ci=8;
                        } else {
                            ci--;
                        }                    
                    }
                    r=rrecs(ri);
                    c=r.cells(ci);
                    cel=c.firstChild;
 
                    cel.focus();
                    cel.select();
                    
                    window.status=k+" "+ci;
 
                } else if (k==39) {
                    if (ci==8) {
                        ci=0;
                    } else {
                        ci++;
                    }
                    r=rrecs(ri);
                    c=r.cells(ci);
                    cel=c.firstChild;
 
                    if (cel.typ=="dval") {
                        if (ci==8) {
                            ci=0;
                        } else {
                            ci++;
                        }                    
                    }
                    r=rrecs(ri);
                    c=r.cells(ci);
                    cel=c.firstChild;
 
                    if (cel.typ=="dval") {
                        if (ci==8) {
                            ci=0;
                        } else {
                            ci++;
                        }                    
                    }
                    r=rrecs(ri);
                    c=r.cells(ci);
                    cel=c.firstChild;
 
                    if (cel.typ=="dval") {
                        if (ci==8) {
                            ci=0;
                        } else {
                            ci++;
                        }                    
                    }
                    r=rrecs(ri);
                    c=r.cells(ci);
                    cel=c.firstChild;
 
                    if (cel.typ=="dval") {
                        if (ci==8) {
                            ci=0;
                        } else {
                            ci++;
                        }                    
                    }
                    r=rrecs(ri);
                    c=r.cells(ci);
                    cel=c.firstChild;
 
                    cel.focus();
                    cel.select();
                    
                    window.status=k+" "+ci;
 
                }                
	 
				 if (k==46||k==8) {
				 } else if (el.value!="") {  
				  event.returnValue=false;
				 } 
	 
				 if (k>=49&&k<=57) {
				 } else if (k>=97&&k<=105) {
				 } else if (k==46||k==8) {
				 } else  {
				  event.returnValue=false;
				 } 
 
 
            }
            
            function fnonblur() {
                el=event.srcElement;
                c=el.parentElement;
                ci=c.cellIndex;
                ri=c.parentElement.rowIndex;
 
                if (el.value!=c.nv) {
                   c.nv=el.value;
                   checkall();
                }
            }                
            
            function checkall(ci,ri) {
                v="";
                err="";
                errcnt=0;
                
                notdoneflag="N";
 
                crecs=SUDOKU.all.tags("INPUT");
 
                if (document.all.GAME_STATUS.value!="COMPLETED") {
                    for (i=0;i<crecs.length;i++) {
                        crec=crecs(i);
                        if (crec.name=="d") {
                            crec.style.color="";    
                            if (crec.value=="") {
                                notdoneflag="Y";
                            }
                        }
                    }
    
                    for (i=0;i<crecs.length;i++) {
                        crec=crecs(i);
                        if (crec.name=="d") {                    
                            if (crec.value!=crec.v) {
                                err="Y";
                            }
                            if (crec.value!="") {    
        
                                r=crec.parentElement.parentElement;
        
                                for (ci=0;ci<9;ci++) {
                                    cel=r.cells(ci);
                                    el=cel.firstChild;
                                    if (el!=crec&&el.value==crec.value) {                                    
                                        crec.style.color="red";
                                        el.style.color="red";
                                        errcnt++;
                                    }
                                }
        
                                ci=crec.parentElement.cellIndex;
                                rrecs=SUDOKU.rows;
 
                                for (ri=0;ri<rrecs.length;ri++) {
                                    rrec=rrecs(ri)
                                    cel=rrec.cells(ci);
                                    el=cel.firstChild;
                                    if (el!=crec&&el.value==crec.value) {
                                        crec.style.color="red";
                                        el.style.color="red";
                                        errcnt++;
                                    }
        
                                }
 
                                rii=crec.parentElement.parentElement.rowIndex;
                                rii++
                                ci++
 
                                ris = (Math.ceil(rii/3)*3-2);                                
                                rie = ris+2;                                
 
                                cis = (Math.ceil(ci/3)*3-2);                                
                                cie = cis+2;                                
 
                                for (rc=ris;rc<rie;rc++) {
                                    for (cc=cis;cc<cie;cc++) {
                                        rrec=rrecs(rc)
                                        cel=rrec.cells(cc);
                                        el=cel.firstChild;
                                        if (el!=crec&&el.value==crec.value) {
                                            crec.style.color="red";
                                            el.style.color="red";
                                        errcnt++;
                                        }
                                    }
                                }
                                
                            } else {
                                crecs(i).style.backgroundColor="";
                            }
                        }
                    }
 
                    if (errcnt==0&&notdoneflag!="Y") {
                        alert("Conratulations. You Did It!!!");
                        timer_pause();
                        document.all.savesudoku.value="COMPLETE";
                    }    
                }    
            }    
            
            function fndblclick() {
                el=event.srcElement;
 
                if (el.className=="regval") {
                    el.className="sureval1";
                } else if (el.className=="sureval1") {
                    el.className="sureval2";
                } else if (el.className=="sureval2") {
                    el.className="sureval3";
                } else if (el.className=="sureval3") {
                    el.className="sureval4";
                } else  {
                    el.className="regval";
                }
                event.returnValue=false;
            }
 
            var timer_interval;
            var start_time=0;
            var pause_time=0;
                        
            function timer_start() {
             start_time=document.all.SUD_START_TIME.value;
             pause_time=document.all.SUD_PAUSE_TIME.value;
             game_time=0;
            if (start_time == 0||start_time == "") {            
                if (document.all.SUD_TIMER.value=="") {
                    start_time=(new Date()).getTime();
                } else {
                    start_time=(new Date()).getTime()-parseInt(document.all.SUD_TIMER.value);
                }
            } else if (pause_time != 0) {
                start_time = parseInt(start_time) + (new Date()).getTime()-parseInt(pause_time);
            } else { 
                return
            }
             pause_time = 0;
             timer_interval = window.setInterval("timer_service()",100); 
             document.all.SUD_START_TIME.value=start_time;
             document.all.SUD_PAUSE_TIME.value=pause_time;
            }
            
 
            function timer_service() {
             start_time=document.all.SUD_START_TIME.value;
             pause_time=document.all.SUD_PAUSE_TIME.value;
        
             var cur_time = (new Date()).getTime();
             game_time=cur_time-start_time;
             var hours = Math.floor((cur_time-start_time)/3600000);
             var minutes = Math.floor(((cur_time-start_time)-hours*3600000)/60000);
             var seconds = Math.floor(((cur_time-start_time)-hours*3600000-minutes*60000)/1000);
             if (minutes < 10) minutes = "0"+minutes;
             if (seconds < 10) seconds = "0"+seconds;
             var timestring=hours+":"+minutes+":"+seconds;
             if (document.all.SUD_TIMER.value != timestring) {    
              document.all.sudtimer.innerHTML=timestring; 
        
              start_time=start_time-300000;
              hours = Math.floor((cur_time-start_time)/3600000);
              minutes = Math.floor(((cur_time-start_time)-hours*3600000)/60000);
        
              tens=Math.floor(minutes/10);
              minutes=Math.round((minutes/10)-Math.floor(minutes/10))*5;
              
              document.all.SUD_TIMER.value=game_time;
             }
            }
        
            function timer_pause() {
             start_time=document.all.SUD_START_TIME.value;
             pause_time=document.all.SUD_PAUSE_TIME.value;
             window.clearInterval(timer_interval);
             if (pause_time == 0) pause_time = (new Date()).getTime(); 
             document.all.SUD_START_TIME.value=start_time;
             document.all.SUD_PAUSE_TIME.value=pause_time;
            }
        
            function timer_stop() {
             start_time=document.all.SUD_START_TIME.value;
             pause_time=document.all.SUD_PAUSE_TIME.value;
             window.clearInterval(timer_interval);
             start_time=0;
             pause_time=0;
             document.all.SUD_START_TIME.value=start_time;
             document.all.SUD_PAUSE_TIME.value=pause_time;
            }