(function($){$.fn.caret=function(begin,end){if(this.length==0)return;if(typeof begin=='number'){end=(typeof end=='number')?end:begin;return this.each(function(){if(this.setSelectionRange){this.focus();this.setSelectionRange(begin,end);}else if(this.createTextRange){var range=this.createTextRange();range.collapse(true);range.moveEnd('character',end);range.moveStart('character',begin);range.select();}});}else{if(this[0].setSelectionRange){begin=this[0].selectionStart;end=this[0].selectionEnd;}else if(document.selection&&document.selection.createRange){var range=document.selection.createRange();begin=0-range.duplicate().moveStart('character',-100000);end=begin+range.text.length;}
return{begin:begin,end:end};}};var charMap={'9':"[0-9]",'a':"[A-Za-z]",'*':"[A-Za-z0-9]"};$.mask={addPlaceholder:function(c,r){charMap[c]=r;}};$.fn.unmask=function(){return this.trigger("unmask");};$.fn.mask=function(mask,settings){settings=$.extend({placeholder:"_",completed:null},settings);var re=new RegExp("^"+
$.map(mask.split(""),function(c,i){return charMap[c]||((/[A-Za-z0-9]/.test(c)?"":"\\")+c);}).join('')+"$");return this.each(function(){var input=$(this);var buffer=new Array(mask.length);var locked=new Array(mask.length);var valid=false;var ignore=false;var firstNonMaskPos=null;$.each(mask.split(""),function(i,c){locked[i]=(charMap[c]==null);buffer[i]=locked[i]?c:settings.placeholder;if(!locked[i]&&firstNonMaskPos==null)
firstNonMaskPos=i;});function focusEvent(){checkVal();writeBuffer();setTimeout(function(){$(input[0]).caret(valid?mask.length:firstNonMaskPos);},0);};function keydownEvent(e){var pos=$(this).caret();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($.browser.opera){s=writeBuffer();input.val(s.substring(0,pos.begin)+" "+s.substring(pos.begin));$(this).caret(pos.begin+1);}else{writeBuffer();$(this).caret(Math.max(firstNonMaskPos,pos.begin));}
return false;}}}else if(k==46){clearBuffer(pos.begin,pos.begin+1);writeBuffer();$(this).caret(Math.max(firstNonMaskPos,pos.begin));return false;}else if(k==27){clearBuffer(0,mask.length);writeBuffer();$(this).caret(firstNonMaskPos);return false;}};function keypressEvent(e){if(ignore){ignore=false;return(e.keyCode==8)?false:null;}
e=e||window.event;var k=e.charCode||e.keyCode||e.which;var pos=$(this).caret();if(e.ctrlKey||e.altKey){return true;}else if((k>=41&&k<=122)||k==32||k>186){var p=seekNext(pos.begin-1);if(p<mask.length){if(new RegExp(charMap[mask.charAt(p)]).test(String.fromCharCode(k))){buffer[p]=String.fromCharCode(k);writeBuffer();var next=seekNext(p);$(this).caret(next);if(settings.completed&&next==mask.length)
settings.completed.call(input);}}}
return false;};function clearBuffer(start,end){for(var i=start;i<end&&i<mask.length;i++){if(!locked[i])
buffer[i]=settings.placeholder;}};function writeBuffer(){return input.val(buffer.join('')).val();};function checkVal(){var test=input.val();var pos=0;for(var i=0;i<mask.length;i++){if(!locked[i]){buffer[i]=settings.placeholder;while(pos++<test.length){var reChar=new RegExp(charMap[mask.charAt(i)]);if(test.charAt(pos-1).match(reChar)){buffer[i]=test.charAt(pos-1);break;}}}}
var s=writeBuffer();if(!s.match(re)){input.val("");clearBuffer(0,mask.length);valid=false;}else
valid=true;};function seekNext(pos){while(++pos<mask.length){if(!locked[pos])
return pos;}
return mask.length;};input.one("unmask",function(){input.unbind("focus",focusEvent);input.unbind("blur",checkVal);input.unbind("keydown",keydownEvent);input.unbind("keypress",keypressEvent);if($.browser.msie)
this.onpaste=null;else if($.browser.mozilla)
this.removeEventListener('input',checkVal,false);});input.bind("focus",focusEvent);input.bind("blur",checkVal);input.bind("keydown",keydownEvent);input.bind("keypress",keypressEvent);if($.browser.msie)
this.onpaste=function(){setTimeout(checkVal,0);};else if($.browser.mozilla)
this.addEventListener('input',checkVal,false);checkVal();});};})(jQuery);