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   1  /*
   2    $Id: general.js,v 1.3 2003/02/10 22:30:55 hpdl Exp $
   3  
   4    osCommerce, Open Source E-Commerce Solutions
   5    http://www.oscommerce.com
   6  
   7    Copyright (c) 2003 osCommerce
   8  
   9    Released under the GNU General Public License
  10  */
  11  
  12  function SetFocus(TargetFormName) {
  13    var target = 0;
  14    if (TargetFormName != "") {
  15      for (i=0; i<document.forms.length; i++) {
  16        if (document.forms[i].name == TargetFormName) {
  17          target = i;
  18          break;
  19        }
  20      }
  21    }
  22  
  23    var TargetForm = document.forms[target];
  24      
  25    for (i=0; i<TargetForm.length; i++) {
  26      if ( (TargetForm.elements[i].type != "image") && (TargetForm.elements[i].type != "hidden") && (TargetForm.elements[i].type != "reset") && (TargetForm.elements[i].type != "submit") ) {
  27        TargetForm.elements[i].focus();
  28  
  29        if ( (TargetForm.elements[i].type == "text") || (TargetForm.elements[i].type == "password") ) {
  30          TargetForm.elements[i].select();
  31        }
  32  
  33        break;
  34      }
  35    }
  36  }
  37  
  38  function RemoveFormatString(TargetElement, FormatString) {
  39    if (TargetElement.value == FormatString) {
  40      TargetElement.value = "";
  41    }
  42  
  43    TargetElement.select();
  44  }
  45  
  46  function CheckDateRange(from, to) {
  47    if (Date.parse(from.value) <= Date.parse(to.value)) {
  48      return true;
  49    } else {
  50      return false;
  51    }
  52  }
  53  
  54  function IsValidDate(DateToCheck, FormatString) {
  55    var strDateToCheck;
  56    var strDateToCheckArray;
  57    var strFormatArray;
  58    var strFormatString;
  59    var strDay;
  60    var strMonth;
  61    var strYear;
  62    var intday;
  63    var intMonth;
  64    var intYear;
  65    var intDateSeparatorIdx = -1;
  66    var intFormatSeparatorIdx = -1;
  67    var strSeparatorArray = new Array("-"," ","/",".");
  68    var strMonthArray = new Array("jan","feb","mar","apr","may","jun","jul","aug","sep","oct","nov","dec");
  69    var intDaysArray = new Array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);
  70  
  71    strDateToCheck = DateToCheck.toLowerCase();
  72    strFormatString = FormatString.toLowerCase();
  73    
  74    if (strDateToCheck.length != strFormatString.length) {
  75      return false;
  76    }
  77  
  78    for (i=0; i<strSeparatorArray.length; i++) {
  79      if (strFormatString.indexOf(strSeparatorArray[i]) != -1) {
  80        intFormatSeparatorIdx = i;
  81        break;
  82      }
  83    }
  84  
  85    for (i=0; i<strSeparatorArray.length; i++) {
  86      if (strDateToCheck.indexOf(strSeparatorArray[i]) != -1) {
  87        intDateSeparatorIdx = i;
  88        break;
  89      }
  90    }
  91  
  92    if (intDateSeparatorIdx != intFormatSeparatorIdx) {
  93      return false;
  94    }
  95  
  96    if (intDateSeparatorIdx != -1) {
  97      strFormatArray = strFormatString.split(strSeparatorArray[intFormatSeparatorIdx]);
  98      if (strFormatArray.length != 3) {
  99        return false;
 100      }
 101  
 102      strDateToCheckArray = strDateToCheck.split(strSeparatorArray[intDateSeparatorIdx]);
 103      if (strDateToCheckArray.length != 3) {
 104        return false;
 105      }
 106  
 107      for (i=0; i<strFormatArray.length; i++) {
 108        if (strFormatArray[i] == 'mm' || strFormatArray[i] == 'mmm') {
 109          strMonth = strDateToCheckArray[i];
 110        }
 111  
 112        if (strFormatArray[i] == 'dd') {
 113          strDay = strDateToCheckArray[i];
 114        }
 115  
 116        if (strFormatArray[i] == 'yyyy') {
 117          strYear = strDateToCheckArray[i];
 118        }
 119      }
 120    } else {
 121      if (FormatString.length > 7) {
 122        if (strFormatString.indexOf('mmm') == -1) {
 123          strMonth = strDateToCheck.substring(strFormatString.indexOf('mm'), 2);
 124        } else {
 125          strMonth = strDateToCheck.substring(strFormatString.indexOf('mmm'), 3);
 126        }
 127  
 128        strDay = strDateToCheck.substring(strFormatString.indexOf('dd'), 2);
 129        strYear = strDateToCheck.substring(strFormatString.indexOf('yyyy'), 2);
 130      } else {
 131        return false;
 132      }
 133    }
 134  
 135    if (strYear.length != 4) {
 136      return false;
 137    }
 138  
 139    intday = parseInt(strDay, 10);
 140    if (isNaN(intday)) {
 141      return false;
 142    }
 143    if (intday < 1) {
 144      return false;
 145    }
 146  
 147    intMonth = parseInt(strMonth, 10);
 148    if (isNaN(intMonth)) {
 149      for (i=0; i<strMonthArray.length; i++) {
 150        if (strMonth == strMonthArray[i]) {
 151          intMonth = i+1;
 152          break;
 153        }
 154      }
 155      if (isNaN(intMonth)) {
 156        return false;
 157      }
 158    }
 159    if (intMonth > 12 || intMonth < 1) {
 160      return false;
 161    }
 162  
 163    intYear = parseInt(strYear, 10);
 164    if (isNaN(intYear)) {
 165      return false;
 166    }
 167    if (IsLeapYear(intYear) == true) {
 168      intDaysArray[1] = 29;
 169    }
 170  
 171    if (intday > intDaysArray[intMonth - 1]) {
 172      return false;
 173    }
 174    
 175    return true;
 176  }
 177  
 178  function IsLeapYear(intYear) {
 179    if (intYear % 100 == 0) {
 180      if (intYear % 400 == 0) {
 181        return true;
 182      }
 183    } else {
 184      if ((intYear % 4) == 0) {
 185        return true;
 186      }
 187    }
 188  
 189    return false;
 190  }