Contador de tempo regressivo

Codigo: <div align="center"><font color="#000080"><FONT FACE="Arial" SIZE="6"><strong>Faltam:</font> <div align="center"><font color="#000080"><FONT FACE="Arial" SIZE="6"><strong> <style style="text/css"> .lcdstyle{ /*Example CSS to create LCD countdown look*/ background-color:black; color:yellow; font: bold 14px MS Sans Serif; padding: 3px; } .lcdstyle sup{ /*Example CSS to create LCD countdown look*/ font-size: 80% } </style> <script type="text/javascript"> /*********************************************** * Dynamic Countdown script- © Dynamic Drive (http://www.dynamicdrive.com) * This notice MUST stay intact for legal use * Visit http://www.dynamicdrive.com/ for this script and 100s more. ***********************************************/ function cdtime(container, targetdate){ if (!document.getElementById || !document.getElementById(container)) return this.container=document.getElementById(container) this.currentTime=new Date() this.targetdate=new Date(targetdate) this.timesup=false this.updateTime() } cdtime.prototype.updateTime=function(){ var thisobj=this this.currentTime.setSeconds(this.currentTime.getSeconds()+1) setTimeout(function(){thisobj.updateTime()}, 1000) //update time every second } cdtime.prototype.displaycountdown=function(baseunit, functionref){ this.baseunit=baseunit this.formatresults=functionref this.showresults() } cdtime.prototype.showresults=function(){ var thisobj=this var timediff=(this.targetdate-this.currentTime)/1000 //difference btw target date and current date, in seconds if (timediff<0){ //if time is up this.timesup=true this.container.innerHTML=this.formatresults() return } var oneMinute=60 //minute unit in seconds var oneHour=60*60 //hour unit in seconds var oneDay=60*60*24 //day unit in seconds var dayfield=Math.floor(timediff/oneDay) var hourfield=Math.floor((timediff-dayfield*oneDay)/oneHour) var minutefield=Math.floor((timediff-dayfield*oneDay-hourfield*oneHour)/oneMinute) var secondfield=Math.floor((timediff-dayfield*oneDay-hourfield*oneHour-minutefield*oneMinute)) if (this.baseunit=="hours"){ //if base unit is hours, set "hourfield" to be topmost level hourfield=dayfield*24+hourfield dayfield="n/a" } else if (this.baseunit=="minutes"){ //if base unit is minutes, set "minutefield" to be topmost level minutefield=dayfield*24*60+hourfield*60+minutefield dayfield=hourfield="n/a" } else if (this.baseunit=="seconds"){ //if base unit is seconds, set "secondfield" to be topmost level var secondfield=timediff dayfield=hourfield=minutefield="n/a" } this.container.innerHTML=this.formatresults(dayfield, hourfield, minutefield, secondfield) setTimeout(function(){thisobj.showresults()}, 1000) //update results every second } /////CUSTOM FORMAT OUTPUT FUNCTIONS BELOW////////////////////////////// //Create your own custom format function to pass into cdtime.displaycountdown() //Use arguments[0] to access "Dias" left //Use arguments[1] to access "Hours" left //Use arguments[2] to access "Minutes" left //Use arguments[3] to access "Seconds" left //The values of these arguments may change depending on the "baseunit" parameter of cdtime.displaycountdown() //For example, if "baseunit" is set to "hours", arguments[0] becomes meaningless and contains "n/a" //For example, if "baseunit" is set to "minutes", arguments[0] and arguments[1] become meaningless etc function formatresults(){ if (this.timesup==false){//if target date/time not yet met var displaystring=arguments[0]+""+arguments[1]+""+arguments[2]+""+arguments[3]+"" } else{ //else if target date/time met var displaystring="Coloque uma data futura!" } return displaystring } function formatresults2(){ if (this.timesup==false){ //if target date/time not yet met var displaystring="<span class='lcdstyle'>"+arguments[0]+" ^Dias "+arguments[1]+" ^Horas "+arguments[2]+" ^Minutos "+arguments[3]+" ^Segundos</span>" } else{ //else if target date/time met var displaystring="" // } return displaystring } </script> <div id="countdowncontainer"></div><br /><div id="countdowncontainer2"></div> <script type="text/javascript"> var futuredate=new cdtime("countdowncontainer", "January 01, 9090 00:00:00") futuredate.displaycountdown("days", formatresults) var currentyear=new Date().getFullYear() //dynamically get this Christmas' year value. If Christmas already passed, then year=current year+1 var thischristmasyear=(new Date().getMonth()>=11 && new Date().getDate()>25)? currentyear+1 : currentyear var christmas=new cdtime("countdowncontainer2", "june 11, "+thischristmasyear+" 11:00:00") christmas.displaycountdown("days", formatresults2) </script> <div align="center"><font color="#000080"><FONT FACE="Arial" SIZE="6"><strong> Para 01/01/9090 às 00:00hs </font>