Les dejo el link de donde lo encontre http://www.sectorweb.net/2007/05/07/calendario-emergente-en-formularios/
y este es el codigo javascript.
Saludos y Gracias.
Código Javascript :
var fixedX = -1 // x position (-1 if to appear below control) var fixedY = -1 // y position (-1 if to appear below control) var startAt = 1 // 0 - sunday ; 1 - monday var showWeekNumber = 1 // 0 - don't show; 1 - show var showToday = 1 // 0 - don't show; 1 - show var imgDir = "images/" // directory for images ... e.g. var imgDir="/img/" var gotoString = "Go To Current Month" var todayString = "Hoy es" var weekString = "Sem" var scrollLeftMessage = "Click to scroll to previous month. Hold mouse button to scroll automatically." var scrollRightMessage = "Click to scroll to next month. Hold mouse button to scroll automatically." var selectMonthMessage = "Click to select a month." var selectYearMessage = "Click to select a year." var selectDateMessage = "Select [date] as date." // do not replace [date], it will be replaced by date. var crossobj, crossMonthObj, crossYearObj, monthSelected, yearSelected, dateSelected, omonthSelected, oyearSelected, odateSelected, monthConstructed, yearConstructed, intervalID1, intervalID2, timeoutID1, timeoutID2, ctlToPlaceValue, ctlNow, dateFormat, nStartingYear var bPageLoaded=false var ie=document.all var dom=document.getElementById var ns4=document.layers var today = new Date() var dateNow = today.getDate() var monthNow = today.getMonth() var yearNow = today.getYear() var imgsrc = new Array("drop1.gif","drop2.gif","left1.gif","left2.gif","right1.gif","right2.gif") var img = new Array() var bShow = false; /* hides <select> and <applet> objects (for IE only) */ function hideElement( elmID, overDiv ) { if( ie ) { for( i = 0; i < document.all.tags( elmID ).length; i++ ) { obj = document.all.tags( elmID )[i]; if( !obj || !obj.offsetParent ) { continue; } // Find the element's offsetTop and offsetLeft relative to the BODY tag. objLeft = obj.offsetLeft; objTop = obj.offsetTop; objParent = obj.offsetParent; while( objParent.tagName.toUpperCase() != "BODY" ) { objLeft += objParent.offsetLeft; objTop += objParent.offsetTop; objParent = objParent.offsetParent; } objHeight = obj.offsetHeight; objWidth = obj.offsetWidth; if(( overDiv.offsetLeft + overDiv.offsetWidth ) <= objLeft ); else if(( overDiv.offsetTop + overDiv.offsetHeight ) <= objTop ); else if( overDiv.offsetTop >= ( objTop + objHeight )); else if( overDiv.offsetLeft >= ( objLeft + objWidth )); else { obj.style.visibility = "hidden"; } } } } /* * unhides <select> and <applet> objects (for IE only) */ function showElement( elmID ) { if( ie ) { for( i = 0; i < document.all.tags( elmID ).length; i++ ) { obj = document.all.tags( elmID )[i]; if( !obj || !obj.offsetParent ) { continue; } obj.style.visibility = ""; } } } function HolidayRec (d, m, y, desc) { this.d = d this.m = m this.y = y this.desc = desc } var HolidaysCounter = 0 var Holidays = new Array() function addHoliday (d, m, y, desc) { Holidays[HolidaysCounter++] = new HolidayRec ( d, m, y, desc ) } if (dom) { for (i=0;i<imgsrc.length;i++) { img[i] = new Image img[i].src = imgDir + imgsrc[i] } document.write ("<div onclick='bShow=true' id='calendar' style='z-index:+999;position:absolute;visibility:hidden;'><table width="+((showWeekNumber==1)?250:220)+" style='font-family:arial;font-size:11px;border-width:1;border-style:solid;border-color:#a0a0a0;font-family:arial; font-size:11px}' bgcolor='#ffffff'><tr background='images/calback.jpg'><td background='images/calback.jpg'><table width='"+((showWeekNumber==1)?248:218)+"'><tr><td style='padding:2px;font-family:arial; font-size:11px;'><font color='#FFFFFF'><B><span id='caption'></span></B></font></td><td align=right><a href='javascript:hideCalendar()'><IMG SRC='"+imgDir+"close.gif' BORDER='0' ALT='Close the Calendar'></a></td></tr></table></td></tr><tr><td style='padding:5px' bgcolor=#ffffff><span id='content'></span></td></tr>") if (showToday==1) { document.write ("<tr bgcolor=#f0f0f0><td style='padding:5px' align=center><span id='lblToday'></span></td></tr>") } document.write ("</table></div><div id='selectMonth' style='z-index:+999;position:absolute;visibility:hidden;'></div><div id='selectYear' style='z-index:+999;position:absolute;visibility:hidden;'></div>"); } //---------------------------------------------TRADUCCION EN ESPAÑOL----------------------------------------------------------------------------- var monthName = new Array("Enero","Febrero","Marzo","Abril","Mayo","Junio","Julio","Augosto","Septiembre","Octubre","Noviembre","Diciembre") var monthName2 = new Array("ENE","FEB","MAR","ABR","MAY","JUN","JUL","AGO","SEP","OCT","NOV","DIC") if (startAt==0) { dayName = new Array ("Lun","Mar","Mie","Jue","Vie","Sab","Dom") } else { dayName = new Array ("Lun","Mar","Mie","Jue","Vie","Sab","Dom") } var styleAnchor="text-decoration:none;color:black;" var styleLightBorder="border-style:solid;border-width:1px;border-color:#a0a0a0;" function swapImage(srcImg, destImg){ if (ie) { document.getElementById(srcImg).setAttribute("src",imgDir + destImg) } } function init() { if (!ns4) { if (!ie) { yearNow += 1900 } crossobj=(dom)?document.getElementById("calendar").style : ie? document.all.calendar : document.calendar hideCalendar() crossMonthObj=(dom)?document.getElementById("selectMonth").style : ie? document.all.selectMonth : document.selectMonth crossYearObj=(dom)?document.getElementById("selectYear").style : ie? document.all.selectYear : document.selectYear monthConstructed=false; yearConstructed=false; if (showToday==1) { document.getElementById("lblToday").innerHTML = todayString + " <a onmousemove='window.status=\""+gotoString+"\"' onmouseout='window.status=\"\"' title='"+gotoString+"' style='"+styleAnchor+"' href='javascript:monthSelected=monthNow;yearSelected=yearNow;constructCalendar();'>"+dayName[(today.getDay()-startAt==-1)?6:(today.getDay()-startAt)]+", " + dateNow + " " + monthName[monthNow].substring(0,15) + " " + yearNow + "</a>" } sHTML1="<span id='spanLeft' style='border-style:solid;border-width:1;border-color:#ffffff;cursor:pointer' onmouseover='swapImage(\"changeLeft\",\"left2.gif\");this.style.borderColor=\"#88AAFF\";window.status=\""+scrollLeftMessage+"\"' onclick='javascript:decMonth()' onmouseout='clearInterval(intervalID1);swapImage(\"changeLeft\",\"left1.gif\");this.style.borderColor=\"#ffffff\";window.status=\"\"' onmousedown='clearTimeout(timeoutID1);timeoutID1=setTimeout(\"StartDecMonth()\",500)' onmouseup='clearTimeout(timeoutID1);clearInterval(intervalID1)'> <IMG id='changeLeft' SRC='"+imgDir+"left1.gif' width=10 height=11 BORDER=0> </span> " sHTML1+="<span id='spanRight' style='border-style:solid;border-width:1;border-color:#ffffff;cursor:pointer' onmouseover='swapImage(\"changeRight\",\"right2.gif\");this.style.borderColor=\"#88AAFF\";window.status=\""+scrollRightMessage+"\"' onmouseout='clearInterval(intervalID1);swapImage(\"changeRight\",\"right1.gif\");this.style.borderColor=\"#ffffff\";window.status=\"\"' onclick='incMonth()' onmousedown='clearTimeout(timeoutID1);timeoutID1=setTimeout(\"StartIncMonth()\",500)' onmouseup='clearTimeout(timeoutID1);clearInterval(intervalID1)'> <IMG id='changeRight' SRC='"+imgDir+"right1.gif' width=10 height=11 BORDER=0> </span> " sHTML1+="<span id='spanMonth' style='border-style:solid;border-width:1;border-color:#ffffff;cursor:pointer' onmouseover='swapImage(\"changeMonth\",\"drop2.gif\");this.style.borderColor=\"#88AAFF\";window.status=\""+selectMonthMessage+"\"' onmouseout='swapImage(\"changeMonth\",\"drop1.gif\");this.style.borderColor=\"#ffffff\";window.status=\"\"' onclick='popUpMonth()'></span> " sHTML1+="<span id='spanYear' style='border-style:solid;border-width:1;border-color:#fffffff;cursor:pointer' onmouseover='swapImage(\"changeYear\",\"drop2.gif\");this.style.borderColor=\"#88AAFF\";window.status=\""+selectYearMessage+"\"' onmouseout='swapImage(\"changeYear\",\"drop1.gif\");this.style.borderColor=\"#ffffff\";window.status=\"\"' onclick='popUpYear()'></span> " document.getElementById("caption").innerHTML = sHTML1 bPageLoaded=true } } function hideCalendar() { crossobj.visibility="hidden" if (crossMonthObj != null){crossMonthObj.visibility="hidden"} if (crossYearObj != null){crossYearObj.visibility="hidden"} showElement( 'SELECT' ); showElement( 'APPLET' ); } function padZero(num) { return (num < 10)? '0' + num : num ; } function constructDate(d,m,y) { sTmp = dateFormat sTmp = sTmp.replace ("dd","<e>") sTmp = sTmp.replace ("d","<d>") sTmp = sTmp.replace ("<e>",padZero(d)) sTmp = sTmp.replace ("<d>",d) sTmp = sTmp.replace ("mmmm","<p>") sTmp = sTmp.replace ("mmm","<o>") sTmp = sTmp.replace ("mm","<n>") sTmp = sTmp.replace ("m","<m>") sTmp = sTmp.replace ("<m>",m+1) sTmp = sTmp.replace ("<n>",padZero(m+1)) sTmp = sTmp.replace ("<o>",monthName[m]) sTmp = sTmp.replace ("<p>",monthName2[m]) sTmp = sTmp.replace ("yyyy",y) return sTmp.replace ("yy",padZero(y%100)) } function closeCalendar() { var sTmp hideCalendar(); ctlToPlaceValue.value = constructDate(dateSelected,monthSelected,yearSelected) } /*** Month Pulldown ***/ function StartDecMonth() { intervalID1=setInterval("decMonth()",80) } function StartIncMonth() { intervalID1=setInterval("incMonth()",80) } function incMonth () { monthSelected++ if (monthSelected>11) { monthSelected=0 yearSelected++ } constructCalendar() } function decMonth () { monthSelected-- if (monthSelected<0) { monthSelected=11 yearSelected-- } constructCalendar() } function constructMonth() { popDownYear() if (!monthConstructed) { sHTML = "" for (i=0; i<12; i++) { sName = monthName[i]; if (i==monthSelected){ sName = "<B>" + sName + "</B>" } sHTML += "<tr><td id='m" + i + "' onmouseover='this.style.backgroundColor=\"#FFCC99\"' onmouseout='this.style.backgroundColor=\"\"' style='cursor:pointer' onclick='monthConstructed=false;monthSelected=" + i + ";constructCalendar();popDownMonth();event.cancelBubble=true'> " + sName + " </td></tr>" } document.getElementById("selectMonth").innerHTML = "<table width=70 style='font-family:arial; font-size:11px; border-width:1; border-style:solid; border-color:#a0a0a0;' bgcolor='#FFFFDD' cellspacing=0 onmouseover='clearTimeout(timeoutID1)' onmouseout='clearTimeout(timeoutID1);timeoutID1=setTimeout(\"popDownMonth()\",100);event.cancelBubble=true'>" + sHTML + "</table>" monthConstructed=true } } function popUpMonth() { constructMonth() crossMonthObj.visibility = (dom||ie)? "visible" : "show" crossMonthObj.left = parseInt(crossobj.left) + 50 crossMonthObj.top = parseInt(crossobj.top) + 26 hideElement( 'SELECT', document.getElementById("selectMonth") ); hideElement( 'APPLET', document.getElementById("selectMonth") ); } function popDownMonth() { crossMonthObj.visibility= "hidden" } /*** Year Pulldown ***/ function incYear() { } function decYear() { } function selectYear(nYear) { yearSelected=parseInt(nYear); yearConstructed=false; constructCalendar(); popDownYear(); } function constructYear() { popDownMonth() sHTML = "" if (!yearConstructed) { sHTML = "" nStartingYear = yearNow; //Dentro de el siguiente ciclo se generan los años, en el caso de que sea introcir fecha de nacimiento restale 30---- i>=(yearNow-30)----- //CAMBIA el siguiente for por este " for(i=yearNow; i>=(yearNow-20); i--) { " si quieres que los años empizen en el actual en adelante for (i=yearNow; i<=(yearNow+4); i++){ sName = i; if (i==yearSelected){ sName = "<B>" + sName + "</B>" } sHTML += "<tr><td id='y" + sName + "' onmouseover='this.style.backgroundColor=\"#FFCC99\"' onmouseout='this.style.backgroundColor=\"\"' style='cursor:pointer' onclick='selectYear("+i+");event.cancelBubble=true'> " + sName + " </td></tr>" } sHTML += "" document.getElementById("selectYear").innerHTML = "<table width=44 style='font-family:arial; font-size:11px; border-width:1; border-style:solid; border-color:#a0a0a0;' bgcolor='#FFFFDD' onmouseover='clearTimeout(timeoutID2)' onmouseout='clearTimeout(timeoutID2);timeoutID2=setTimeout(\"popDownYear()\",100)' cellspacing=0>" + sHTML + "</table>" yearConstructed = true } } function popDownYear() { clearInterval(intervalID1) clearTimeout(timeoutID1) clearInterval(intervalID2) clearTimeout(timeoutID2) crossYearObj.visibility= "hidden" } function popUpYear() { var leftOffset constructYear() crossYearObj.visibility = (dom||ie)? "visible" : "show" leftOffset = parseInt(crossobj.left) + document.getElementById("spanYear").offsetLeft if (ie) { leftOffset += 6 } crossYearObj.left = leftOffset crossYearObj.top = parseInt(crossobj.top) + 26 } /*** calendar ***/ function WeekNbr(n) { // Algorithm used: // From Klaus Tondering's Calendar document (The Authority/Guru) // hhtp://www.tondering.dk/claus/calendar.html // a = (14-month) / 12 // y = year + 4800 - a // m = month + 12a - 3 // J = day + (153m + 2) / 5 + 365y + y / 4 - y / 100 + y / 400 - 32045 // d4 = (J + 31741 - (J mod 7)) mod 146097 mod 36524 mod 1461 // L = d4 / 1460 // d1 = ((d4 - L) mod 365) + L // WeekNumber = d1 / 7 + 1 year = n.getFullYear(); month = n.getMonth() + 1; if (startAt == 0) { day = n.getDate() + 1; } else { day = n.getDate(); } a = Math.floor((14-month) / 12); y = year + 4800 - a; m = month + 12 * a - 3; b = Math.floor(y/4) - Math.floor(y/100) + Math.floor(y/400); J = day + Math.floor((153 * m + 2) / 5) + 365 * y + b - 32045; d4 = (((J + 31741 - (J % 7)) % 146097) % 36524) % 1461; L = Math.floor(d4 / 1460); d1 = ((d4 - L) % 365) + L; week = Math.floor(d1/7) + 1; return week; } function constructCalendar () { var aNumDays = Array (31,0,31,30,31,30,31,31,30,31,30,31) var dateMessage var startDate = new Date (yearSelected,monthSelected,1) var endDate if (monthSelected==1) { endDate = new Date (yearSelected,monthSelected+1,1); endDate = new Date (endDate - (24*60*60*1000)); numDaysInMonth = endDate.getDate() } else { numDaysInMonth = aNumDays[monthSelected]; } datePointer = 0 dayPointer = startDate.getDay() - startAt if (dayPointer<0) { dayPointer = 6 } sHTML = "<table border=0 style='font-family:verdana;font-size:10px;'><tr>" if (showWeekNumber==1) { sHTML += "<td width=27><b>" + weekString + "</b></td><td width=1 rowspan=7 bgcolor='#d0d0d0' style='padding:0px'><img src='"+imgDir+"divider.gif' width=1></td>" } for (i=0; i<7; i++) { sHTML += "<td width='27' align='right'><B>"+ dayName[i]+"</B></td>" } sHTML +="</tr><tr>" if (showWeekNumber==1) { sHTML += "<td align=right>" + WeekNbr(startDate) + " </td>" } for ( var i=1; i<=dayPointer;i++ ) { sHTML += "<td> </td>" } for ( datePointer=1; datePointer<=numDaysInMonth; datePointer++ ) { dayPointer++; sHTML += "<td align=right>" sStyle=styleAnchor if ((datePointer==odateSelected) && (monthSelected==omonthSelected) && (yearSelected==oyearSelected)) { sStyle+=styleLightBorder } sHint = "" for (k=0;k<HolidaysCounter;k++) { if ((parseInt(Holidays[k].d)==datePointer)&&(parseInt(Holidays[k].m)==(monthSelected+1))) { if ((parseInt(Holidays[k].y)==0)||((parseInt(Holidays[k].y)==yearSelected)&&(parseInt(Holidays[k].y)!=0))) { sStyle+="background-color:#FFDDDD;" sHint+=sHint==""?Holidays[k].desc:"\n"+Holidays[k].desc } } } var regexp= /\"/g sHint=sHint.replace(regexp,""") dateMessage = "onmousemove='window.status=\""+selectDateMessage.replace("[date]",constructDate(datePointer,monthSelected,yearSelected))+"\"' onmouseout='window.status=\"\"' " var f1= new Date(yearSelected,monthSelected,datePointer); //------------------------------------TERMINAR LA FUNCION EN 0 PARA QUE INICIE EN EL DIA ACTUAL EN LA SIGUIENTE LINEA---------------------------------------------- var temp = addToDate(makeDateFormat(dateNow, monthNow, yearNow),0); var nDia = Number(temp.substr(0, 2)); var nMes = Number(temp.substr(3, 2)); var nAno = Number(temp.substr(6, 4)); var fa= new Date(nAno,nMes,nDia); if ((datePointer==nDia)&&(monthSelected==nMes)&&(yearSelected==nAno)) //{ sHTML += "<b style='"+sStyle+"'><font color=#ff0000> " + datePointer + "</font> </b>"} { sHTML += "<b><a "+dateMessage+" title=\"" + sHint + "\" style='"+sStyle+"' href='javascript:dateSelected="+datePointer+";closeCalendar();'><font color=#ff0000> " + datePointer + "</font> </a></b>"} //else if (dayPointer % 7 == (startAt * -1)+1) //{ sHTML += "<a "+dateMessage+" title=\"" + sHint + "\" style='"+sStyle+"' href='javascript:dateSelected="+datePointer + ";closeCalendar();'> <font color=#909090>" + datePointer + "</font> </a>" } else if (FechaMenor(fa,f1)) //((datePointer<dateNow)&&(monthSelected<=monthNow)&&(yearSelected=yearNow)) { sHTML += " <font color=#909090>" + datePointer + "</font> " } else { sHTML += "<a "+dateMessage+" title=\"" + sHint + "\" style='"+sStyle+"' href='javascript:dateSelected="+datePointer + ";closeCalendar();'> " + datePointer + " </a>" } sHTML += "" if ((dayPointer+startAt) % 7 == startAt) { sHTML += "</tr><tr>" if ((showWeekNumber==1)&&(datePointer<numDaysInMonth)) { sHTML += "<td align=right>" + (WeekNbr(new Date(yearSelected,monthSelected,datePointer+1))) + " </td>" } } } document.getElementById("content").innerHTML = sHTML document.getElementById("spanMonth").innerHTML = " " + monthName[monthSelected] + " <IMG id='changeMonth' SRC='"+imgDir+"drop1.gif' WIDTH='12' HEIGHT='10' BORDER=0>" document.getElementById("spanYear").innerHTML = " " + yearSelected + " <IMG id='changeYear' SRC='"+imgDir+"drop1.gif' WIDTH='12' HEIGHT='10' BORDER=0>" } function popUpCalendar(ctl, ctl2, format) { var leftpos=-190 var toppos=-10 if (bPageLoaded) { if ( crossobj.visibility == "hidden" ) { ctlToPlaceValue = ctl2 dateFormat=format; formatChar = " " aFormat = dateFormat.split(formatChar) if (aFormat.length<3) { formatChar = "/" aFormat = dateFormat.split(formatChar) if (aFormat.length<3) { formatChar = "." aFormat = dateFormat.split(formatChar) if (aFormat.length<3) { formatChar = "-" aFormat = dateFormat.split(formatChar) if (aFormat.length<3) { // invalid date format formatChar="" } } } } tokensChanged = 0 if ( formatChar != "" ) { // use user's date aData = ctl2.value.split(formatChar) for (i=0;i<3;i++) { if ((aFormat[i]=="d") || (aFormat[i]=="dd")) { dateSelected = parseInt(aData[i], 10) tokensChanged ++ } else if ((aFormat[i]=="m") || (aFormat[i]=="mm")) { monthSelected = parseInt(aData[i], 10) - 1 tokensChanged ++ } else if (aFormat[i]=="yyyy") { yearSelected = parseInt(aData[i], 10) tokensChanged ++ } else if (aFormat[i]=="mmm") { for (j=0; j<12; j++) { if (aData[i]==monthName[j]) { monthSelected=j tokensChanged ++ } } } else if (aFormat[i]=="mmmm") { for (j=0; j<12; j++) { if (aData[i]==monthName2[j]) { monthSelected=j tokensChanged ++ } } } } } if ((tokensChanged!=3)||isNaN(dateSelected)||isNaN(monthSelected)||isNaN(yearSelected)) { //------------------------------------TERMINAR LA FUNCION EN 0 PARA QUE INICIE EN EL DIA ACTUAL EN LA SIGUIENTE LINEA---------------------------------------------- var temp = addToDate(makeDateFormat(dateNow, monthNow, yearNow),0); var nDia = Number(temp.substr(0, 2)); var nMes = Number(temp.substr(3, 2)); var nAno = Number(temp.substr(6, 4)); dateSelected = nDia monthSelected = nMes yearSelected = nAno } odateSelected=dateSelected omonthSelected=monthSelected oyearSelected=yearSelected aTag = ctl do { aTag = aTag.offsetParent; leftpos += aTag.offsetLeft; toppos += aTag.offsetTop; } while(aTag.tagName!="BODY"); crossobj.left = fixedX==-1 ? ctl.offsetLeft + leftpos : fixedX; crossobj.top = fixedY==-1 ? ctl.offsetTop + toppos + ctl.offsetHeight + 2 : fixedY; constructCalendar (1, monthSelected, yearSelected); crossobj.visibility=(dom||ie)? "visible" : "show" hideElement( 'SELECT', document.getElementById("calendar") ); hideElement( 'APPLET', document.getElementById("calendar") ); bShow = true; } else { hideCalendar() if (ctlNow!=ctl) {popUpCalendar(ctl, ctl2, format)} } ctlNow = ctl } } document.onkeypress = function hidecal1 () { if (event.keyCode==27) { hideCalendar() } } document.onclick = function hidecal2 () { if (!bShow) { hideCalendar() } bShow = false } if(ie) { init() } else { window.onload=init } // ************ ADICIONAR DIAS A UNA FECHA *********** var aFinMes = new Array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31); function finMes(nMes, nAno){ return aFinMes[nMes - 1] + (((nMes == 2) && (nAno % 4) == 0)? 1: 0); } function padNmb(nStr, nLen, sChr){ var sRes = String(nStr); for (var i = 0; i < nLen - String(nStr).length; i++) sRes = sChr + sRes; return sRes; } function makeDateFormat(nDay, nMonth, nYear){ var sRes; sRes = padNmb(nDay, 2, "0") + "/" + padNmb(nMonth, 2, "0") + "/" + padNmb(nYear, 4, "0"); return sRes; } function incDate(sFec0){ var nDia = parseInt(sFec0.substr(0, 2), 10); var nMes = parseInt(sFec0.substr(3, 2), 10); var nAno = parseInt(sFec0.substr(6, 4), 10); nDia += 1; if (nDia > finMes(nMes, nAno)){ nDia = 1; nMes += 1; if (nMes == 13){ nMes = 1; nAno += 1; } } return makeDateFormat(nDia, nMes, nAno); } function decDate(sFec0){ var nDia = Number(sFec0.substr(0, 2)); var nMes = Number(sFec0.substr(3, 2)); var nAno = Number(sFec0.substr(6, 4)); nDia -= 1; if (nDia == 0){ nMes -= 1; if (nMes == 0){ nMes = 12; nAno -= 1; } nDia = finMes(nMes, nAno); } return makeDateFormat(nDia, nMes, nAno); } function addToDate(sFec0, sInc){ var nInc = Math.abs(parseInt(sInc)); var sRes = sFec0; if (parseInt(sInc) >= 0) for (var i = 0; i < nInc; i++) sRes = incDate(sRes); else for (var i = 0; i < nInc; i++) sRes = decDate(sRes); return sRes; } function recalcF1(){ with (document.formulario){ fecha1.value = addToDate(fecha0.value, increm.value); } } function ValidarFecha() { /*var temp = new Date() fechaActual= (temp.getDate() + 1) + "/"; fechaActual += temp.getMonth() + "/"; fechaActual += temp.getFullYear(); if (( addToDate(fechaActual, 2) < document.form1.date1.value ) && (document.form1.date1.value > fechaActual ) ){ return true } else { return false; } */ return true; } //----------------------------Eliminar las siguientes lineas para activar todos los dias del año-----y retornar un false----------------------------------------- function FechaMenor(fechaActual, fecha1) { /* var msegActual = fechaActual.getTime(); var msegFecha1 = fecha1.getTime(); var Diferencia = msegActual - msegFecha1; Diferencia /= 86400000; if (Diferencia < 0) { return false; } else { return true; }*/ return false; } function agregaOpcion( ){ var cosa=document.forms['form1'].elements['destinos']; var total=cosa.options.length; var nomdes=prompt("Ingrese nombre del destino",""); variable=new Option(nomdes,nomdes); cosa.options[cosa.options.length]=variable; }