/**
* @Copyright (c) 2011 Aurélio Saraiva, Diego Plentz
* @Page http://github.com/plentz/jquery-maskmoney
* try at http://plentz.org/maskmoney
*
* @Version: 1.3
* @Release: 2011-04-20
*/
(function($){$.fn.maskMoney=function(settings){settings=$.extend({symbol:'US$',showSymbol:false,symbolStay:false,thousands:',',decimal:'.',precision:2,defaultZero:true,allowZero:false,allowNegative:false},settings);return this.each(function(){var input=$(this);function keypressEvent(e){e=e||window.event;var k=e.charCode||e.keyCode||e.which;if(k==undefined)return false;if(input.attr('readonly')&&(k!=13&&k!=9))return false;if(k<48||k>57){if(k==45){input.val(changeSign(input));return false;}
if(k==43){input.val(input.val().replace('-',''));return false;}else if(k==13||k==9){return true;}else if(k==37||k==39){return true;}else{preventDefault(e);return true;}}else if(input.val().length==input.attr('maxlength')){return false;}else{preventDefault(e);var key=String.fromCharCode(k);var x=input.get(0);var selection=input.getInputSelection(x);var startPos=selection.start;var endPos=selection.end;x.value=x.value.substring(0,startPos)+key+x.value.substring(endPos,x.value.length);maskAndPosition(x,startPos+1);return false;}}
function keydownEvent(e){e=e||window.event;var k=e.charCode||e.keyCode||e.which;if(k==undefined)return false;if(input.attr('readonly')&&(k!=13&&k!=9))return false;var x=input.get(0);var selection=input.getInputSelection(x);var startPos=selection.start;var endPos=selection.end;if(k==8){preventDefault(e);if(startPos==endPos){x.value=x.value.substring(0,startPos-1)+x.value.substring(endPos,x.value.length);startPos=startPos-1;}else{x.value=x.value.substring(0,startPos)+x.value.substring(endPos,x.value.length);}
maskAndPosition(x,startPos);return false;}else if(k==9){return true;}else if(k==46||k==63272){preventDefault(e);if(x.selectionStart==x.selectionEnd){x.value=x.value.substring(0,startPos)+x.value.substring(endPos+1,x.value.length);}else{x.value=x.value.substring(0,startPos)+x.value.substring(endPos,x.value.length);}
maskAndPosition(x,startPos);return false;}else{return true;}}
function focusEvent(e){var mask=getDefaultMask();if(input.val()==mask){input.val('');}else if(input.val()==''&&settings.defaultZero){input.val(setSymbol(mask));}else{input.val(setSymbol(input.val()));}
if(this.createTextRange){var textRange=this.createTextRange();textRange.collapse(false);textRange.select();}}
function blurEvent(e){if($.browser.msie){keypressEvent(e);}
if(input.val()==''||input.val()==setSymbol(getDefaultMask())||input.val()==settings.symbol){if(!settings.allowZero)input.val('');else if(!settings.symbolStay)input.val(getDefaultMask());else input.val(setSymbol(getDefaultMask()));}else{if(!settings.symbolStay)input.val(input.val().replace(settings.symbol,''));else if(settings.symbolStay&&input.val()==settings.symbol)input.val(setSymbol(getDefaultMask()));}}
function preventDefault(e){if(e.preventDefault){e.preventDefault();}else{e.returnValue=false}}
function maskAndPosition(x,startPos){var originalLen=input.val().length;input.val(maskValue(x.value));var newLen=input.val().length;startPos=startPos-(originalLen-newLen);input.setCursorPosition(startPos);}
function maskValue(v){v=v.replace(settings.symbol,'');var strCheck='0123456789';var len=v.length;var a='',t='',neg='';if(len!=0&&v.charAt(0)=='-'){v=v.replace('-','');if(settings.allowNegative){neg='-';}}
if(len==0){if(!settings.defaultZero)return t;t='0.00';}
for(var i=0;i<len;i++){if((v.charAt(i)!='0')&&(v.charAt(i)!=settings.decimal))break;}
for(;i<len;i++){if(strCheck.indexOf(v.charAt(i))!=-1)a+=v.charAt(i);}
var n=parseFloat(a);n=isNaN(n)?0:n/Math.pow(10,settings.precision);t=n.toFixed(settings.precision);i=settings.precision==0?0:1;var p,d=(t=t.split('.'))[i].substr(0,settings.precision);for(p=(t=t[0]).length;(p-=3)>=1;){t=t.substr(0,p)+settings.thousands+t.substr(p);}
return(settings.precision>0)?setSymbol(neg+t+settings.decimal+d+Array((settings.precision+1)-d.length).join(0)):setSymbol(neg+t);}
function mask(){var value=input.val();input.val(maskValue(value));}
function getDefaultMask(){var n=parseFloat('0')/Math.pow(10,settings.precision);return(n.toFixed(settings.precision)).replace(new RegExp('\\.','g'),settings.decimal);}
function setSymbol(v){if(settings.showSymbol){if(v.substr(0,settings.symbol.length)!=settings.symbol)return settings.symbol+v;}
return v;}
function changeSign(i){if(settings.allowNegative){var vic=i.val();if(i.val()!=''&&i.val().charAt(0)=='-'){return i.val().replace('-','');}else{return'-'+i.val();}}else{return i.val();}}
input.bind('keypress.maskMoney',keypressEvent);input.bind('keydown.maskMoney',keydownEvent);input.bind('blur.maskMoney',blurEvent);input.bind('focus.maskMoney',focusEvent);input.bind('mask',mask);input.one('unmaskMoney',function(){input.unbind('.maskMoney');if($.browser.msie){this.onpaste=null;}else if($.browser.mozilla){this.removeEventListener('input',blurEvent,false);}});});}
$.fn.unmaskMoney=function(){return this.trigger('unmaskMoney');};$.fn.mask=function(){return this.trigger('mask');};$.fn.setCursorPosition=function(pos){this.each(function(index,elem){if(elem.setSelectionRange){elem.focus();elem.setSelectionRange(pos,pos);}else if(elem.createTextRange){var range=elem.createTextRange();range.collapse(true);range.moveEnd('character',pos);range.moveStart('character',pos);range.select();}});return this;};$.fn.getInputSelection=function(el){var start=0,end=0,normalizedValue,range,textInputRange,len,endRange;if(typeof el.selectionStart=="number"&&typeof el.selectionEnd=="number"){start=el.selectionStart;end=el.selectionEnd;}else{range=document.selection.createRange();if(range&&range.parentElement()==el){len=el.value.length;normalizedValue=el.value.replace(/\r\n/g,"\n");textInputRange=el.createTextRange();textInputRange.moveToBookmark(range.getBookmark());endRange=el.createTextRange();endRange.collapse(false);if(textInputRange.compareEndPoints("StartToEnd",endRange)>-1){start=end=len;}else{start=-textInputRange.moveStart("character",-len);start+=normalizedValue.slice(0,start).split("\n").length-1;if(textInputRange.compareEndPoints("EndToEnd",endRange)>-1){end=len;}else{end=-textInputRange.moveEnd("character",-len);end+=normalizedValue.slice(0,end).split("\n").length-1;}}}}
return{start:start,end:end};}})(jQuery);