/*
  $Id: general.js,v 1.3 2003/02/10 22:30:55 hpdl Exp $

  osCommerce, Open Source E-Commerce Solutions
  http://www.oscommerce.com

  Copyright (c) 2003 osCommerce

  Released under the GNU General Public License
*/

function SetFocus(TargetFormName) {
  var target = 0;
  if (TargetFormName != "") {
    for (i=0; i<document.forms.length; i++) {
      if (document.forms[i].name == TargetFormName) {
        target = i;
        break;
      }
    }
  }

  var TargetForm = document.forms[target];
    
  for (i=0; i<TargetForm.length; i++) {
    if ( (TargetForm.elements[i].type != "image") && (TargetForm.elements[i].type != "hidden") && (TargetForm.elements[i].type != "reset") && (TargetForm.elements[i].type != "submit") ) {
      TargetForm.elements[i].focus();

      if ( (TargetForm.elements[i].type == "text") || (TargetForm.elements[i].type == "password") ) {
        TargetForm.elements[i].select();
      }

      break;
    }
  }
}

function RemoveFormatString(TargetElement, FormatString) {
  if (TargetElement.value == FormatString) {
    TargetElement.value = "";
  }

  TargetElement.select();
}

function CheckDateRange(from, to) {
  if (Date.parse(from.value) <= Date.parse(to.value)) {
    return true;
  } else {
    return false;
  }
}

function IsValidDate(DateToCheck, FormatString) {
  var strDateToCheck;
  var strDateToCheckArray;
  var strFormatArray;
  var strFormatString;
  var strDay;
  var strMonth;
  var strYear;
  var intday;
  var intMonth;
  var intYear;
  var intDateSeparatorIdx = -1;
  var intFormatSeparatorIdx = -1;
  var strSeparatorArray = new Array("-"," ","/",".");
  var strMonthArray = new Array("jan","feb","mar","apr","may","jun","jul","aug","sep","oct","nov","dec");
  var intDaysArray = new Array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);

  strDateToCheck = DateToCheck.toLowerCase();
  strFormatString = FormatString.toLowerCase();
  
  if (strDateToCheck.length != strFormatString.length) {
    return false;
  }

  for (i=0; i<strSeparatorArray.length; i++) {
    if (strFormatString.indexOf(strSeparatorArray[i]) != -1) {
      intFormatSeparatorIdx = i;
      break;
    }
  }

  for (i=0; i<strSeparatorArray.length; i++) {
    if (strDateToCheck.indexOf(strSeparatorArray[i]) != -1) {
      intDateSeparatorIdx = i;
      break;
    }
  }

  if (intDateSeparatorIdx != intFormatSeparatorIdx) {
    return false;
  }

  if (intDateSeparatorIdx != -1) {
    strFormatArray = strFormatString.split(strSeparatorArray[intFormatSeparatorIdx]);
    if (strFormatArray.length != 3) {
      return false;
    }

    strDateToCheckArray = strDateToCheck.split(strSeparatorArray[intDateSeparatorIdx]);
    if (strDateToCheckArray.length != 3) {
      return false;
    }

    for (i=0; i<strFormatArray.length; i++) {
      if (strFormatArray[i] == 'mm' || strFormatArray[i] == 'mmm') {
        strMonth = strDateToCheckArray[i];
      }

      if (strFormatArray[i] == 'dd') {
        strDay = strDateToCheckArray[i];
      }

      if (strFormatArray[i] == 'yyyy') {
        strYear = strDateToCheckArray[i];
      }
    }
  } else {
    if (FormatString.length > 7) {
      if (strFormatString.indexOf('mmm') == -1) {
        strMonth = strDateToCheck.substring(strFormatString.indexOf('mm'), 2);
      } else {
        strMonth = strDateToCheck.substring(strFormatString.indexOf('mmm'), 3);
      }

      strDay = strDateToCheck.substring(strFormatString.indexOf('dd'), 2);
      strYear = strDateToCheck.substring(strFormatString.indexOf('yyyy'), 2);
    } else {
      return false;
    }
  }

  if (strYear.length != 4) {
    return false;
  }

  intday = parseInt(strDay, 10);
  if (isNaN(intday)) {
    return false;
  }
  if (intday < 1) {
    return false;
  }

  intMonth = parseInt(strMonth, 10);
  if (isNaN(intMonth)) {
    for (i=0; i<strMonthArray.length; i++) {
      if (strMonth == strMonthArray[i]) {
        intMonth = i+1;
        break;
      }
    }
    if (isNaN(intMonth)) {
      return false;
    }
  }
  if (intMonth > 12 || intMonth < 1) {
    return false;
  }

  intYear = parseInt(strYear, 10);
  if (isNaN(intYear)) {
    return false;
  }
  if (IsLeapYear(intYear) == true) {
    intDaysArray[1] = 29;
  }

  if (intday > intDaysArray[intMonth - 1]) {
    return false;
  }
  
  return true;
}

function IsLeapYear(intYear) {
  if (intYear % 100 == 0) {
    if (intYear % 400 == 0) {
      return true;
    }
  } else {
    if ((intYear % 4) == 0) {
      return true;
    }
  }

  return false;
}

function clearObject(element) {
    while (element.length > 0) {
        element[element.length-1] = null;
    }
}

function getFirstIndex(ar, value) {
    for (tmp in ar) {
        if (typeof value == 'undefined' || tmp != value) return tmp;
    }
}

function getFirstAvailableEntry(ar,a,b) {
    for (tmp in ar) {
        if (typeof selector_permutations[a][b][tmp] != "undefined")
        {
            return tmp;
        }
    }
}


function createOptions(keepSelector) {
    if (typeof keepSelector == 'undefined') {
        keepSelector = -1;
    }
    else
    {
        var keepSelect = document.getElementById('selector['+keepSelector+']');
        var keepSelectValue = keepSelect.options[keepSelect.options.selectedIndex].value;
    }
    var debugstring = '';
    
    for (x in selector_options) {
    	if (
    		true
    		//typeof selector_options[x] == 'string'  && typeof selector_options[x] != 'function'
    		) {
	        var alternateSelectId = (x==0?1:0);
	        var alternateSelect = document.getElementById('selector['+alternateSelectId+']');
	        if (alternateSelect.options.selectedIndex > -1) {
	            var alternateSelectValue = alternateSelect.options[alternateSelect.options.selectedIndex].value;
	        }
	        else {
	            var alternateSelectValue = getFirstIndex(selector_options[alternateSelectId]);
	        }
	        var currentSelect = document.getElementById('selector['+x+']');
	        if (currentSelect) {
		        var selectedValue = -1;
		        if (typeof currentSelect != 'undefined' && currentSelect.options.selectedIndex != -1) {
		            selectedValue = currentSelect.options[currentSelect.options.selectedIndex].value;
		        }
		        else {
		            selectedValue = getFirstIndex(selector_options[x]);
		        }
		        
		        if (typeof selector_permutations[alternateSelectId][alternateSelectValue][selectedValue] == "undefined") {
		            if (x == keepSelector) {
		                alternateSelectValue = getFirstAvailableEntry(selector_options[alternateSelectId],x,selectedValue);
		            }
		            else {
		                selectedValue = getFirstAvailableEntry(selector_options[x],alternateSelectId,alternateSelectValue);
		            }
		        }
		        
		        clearObject(currentSelect.options);
		        for (y in selector_options[x]) {
		            if  (
		                (typeof selector_permutations[alternateSelectId][alternateSelectValue][y] != "undefined")
		            	&& (typeof selector_options[x][y] == 'string')
		                
		                ) {
		                var newOption = new Option(selector_options[x][y],y,(y == selectedValue),(y == selectedValue));
		                currentSelect.options[currentSelect.options.length] = newOption;
		            }
		        }
		        // nicht auswählbare Optionen in Klammern hinzufügen
		        if (currentSelect.options.length < selector_option_length[x]) {
		            for (y in selector_options[x]) {
		            	if (typeof selector_options[x][y] == 'string') {
			                if (alternateSelectValue != -1 && 
			                	//ignoreSelector != x &&
			                    (typeof selector_permutations[alternateSelectId][alternateSelectValue][y] == "undefined")
			                    ) {
			                    var newOption = new Option('('+selector_options[x][y]+') *',y,false,false);
			                    currentSelect.options[currentSelect.options.length] = newOption;
			                }
		            	}
		            }
		        }
	        }
	    }
    }
	getCurrentOptionId();
}


function getCurrentOptionId() {
    var depth = selector_options.length;
    var select0 = document.getElementById('selector[0]');
    var select0value = select0.options[select0.options.selectedIndex].value;
    if (depth > 1) {
        var select1 = document.getElementById('selector[1]');
        var select1value = select1.options[select1.options.selectedIndex].value;
    }
    else
    {
        select1value = 0;
    }
    var selectedOption = selector_permutations[0][select0value][select1value];
    //debug(selectedOption,true);
    var variant_selector = document.getElementById('variante_options_id');
    variant_selector.value = selectedOption;
    xajax_getVariantsPrice(products_id,selectedOption);
    /*
    for(x = 0; x < variant_selector.options.length; x++) {
        if (variant_selector.options[x].value == selectedOption) {
			variant_selector.options.selectedIndex = x;
    	}
    }
    */
}