(function($){function getCaretPosition(ctl){var res={begin:0,end:0};if(ctl.setSelectionRange){res.begin=ctl.selectionStart;res.end=ctl.selectionEnd;}else if(document.selection&&document.selection.createRange){var range=document.selection.createRange();res.begin=0-range.duplicate().moveStart('character',-100000);res.end=res.begin+range.text.length;}return res;};function setCaretPosition(ctl,pos){if(ctl.setSelectionRange){ctl.focus();ctl.setSelectionRange(pos,pos);}else if(ctl.createTextRange){var range=ctl.createTextRange();range.collapse(true);range.moveEnd('character',pos);range.moveStart('character',pos);range.select();}};var charMap={'9':"[0-9]",'a':"[A-Za-z]",'*':"[A-Za-z0-9]"};$.mask={addPlaceholder:function(c,r){charMap[c]=r;}};$.fn.mask=function(mask,settings){settings=$.extend({placeholder:"_",completed:null},settings);var reString="^";for(var i=0;i<mask.length;i++)reString+=(charMap[mask.charAt(i)]||("\\"+mask.charAt(i)));reString+="$";var re=new RegExp(reString);return this.each(function(){var input=$(this);var buffer=new Array(mask.length);var locked=new Array(mask.length);for(var i=0;i<mask.length;i++){locked[i]=charMap[mask.charAt(i)]==null;buffer[i]=locked[i]?mask.charAt(i):settings.placeholder;}input.focus(function(){checkVal();writeBuffer();setCaretPosition(this,0);});input.blur(checkVal);if($.browser.msie)this.onpaste=function(){setTimeout(checkVal,0);};else if($.browser.mozilla)this.addEventListener('input',checkVal,false);var ignore=false;input.keydown(function(e){var pos=getCaretPosition(this);var k=e.keyCode;ignore=(k<16||(k>16&&k<32)||(k>32&&k<41));if((pos.begin-pos.end)!=0&&(!ignore||k==8||k==46)){clearBuffer(pos.begin,pos.end);}if(k==8){while(pos.begin-->=0){if(!locked[pos.begin]){buffer[pos.begin]=settings.placeholder;if($.browser.opera){writeBuffer(pos.begin);setCaretPosition(this,pos.begin+1);}else{writeBuffer();setCaretPosition(this,pos.begin);}return false;}}}else if(k==46){clearBuffer(pos.begin,pos.begin+1);writeBuffer();setCaretPosition(this,pos.begin);return false;}else if(k==27){clearBuffer(0,mask.length);writeBuffer();setCaretPosition(this,0);return false;}});input.keypress(function(e){if(ignore){ignore=false;return;}e=e||window.event;var k=e.charCode||e.keyCode||e.which;var pos=getCaretPosition(this);var caretPos=pos.begin;if(e.ctrlKey||e.altKey){return true;}else if((k>=41&&k<=122)||k==32||k>186){while(pos.begin<mask.length){var reString=charMap[mask.charAt(pos.begin)];var match;if(reString){var reChar=new RegExp(reString);match=String.fromCharCode(k).match(reChar);}else{pos.begin+=1;pos.end=pos.begin;caretPos+=1;continue;}if(match)buffer[pos.begin]=String.fromCharCode(k);else return false;while(++caretPos<mask.length){if(!locked[caretPos])break;}break;}}else return false;writeBuffer();if(settings.completed&&caretPos>=buffer.length)settings.completed.call(input);else setCaretPosition(this,caretPos);return false;});function clearBuffer(start,end){for(var i=start;i<end;i++){if(!locked[i])buffer[i]=settings.placeholder;}};function writeBuffer(pos){var s="";for(var i=0;i<mask.length;i++){s+=buffer[i];if(i==pos)s+=settings.placeholder;}input.val(s);return s;};function checkVal(){var test=input.val();var pos=0;for(var i=0;i<mask.length;i++){if(!locked[i]){while(pos++<test.length){var reChar=new RegExp(charMap[mask.charAt(i)]);if(test.charAt(pos-1).match(reChar)){buffer[i]=test.charAt(pos-1);break;}}}}var s=writeBuffer();if(!s.match(re)){input.val("");clearBuffer(0,mask.length);}};});};})(jQuery);