/*
  $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
*/

// Browser Slide-Show script. With image cross fade effect for those browsers
// that support it.
// Script copyright (C) 2004-06 www.cryer.co.uk.
// Script is free to use provided this copyright header is included.
var slideCache = new Array();
function RunSlideShowWithLinks(pictureID,linkID,imageLinks,displaySecs)
{
	var separator = imageLinks.indexOf(";");
	var nextImage = imageLinks.substring(0,separator);
	if (slideCache[nextImage] && slideCache[nextImage].loaded)
	{
		var futureImages= imageLinks.substring(separator +1,imageLinks.length) + ';' + nextImage;
		separator = futureImages.indexOf(";");
		var nextLink = futureImages.substring(0,separator);
		futureImages= futureImages.substring(separator+1,imageLinks.length) + ';' + nextLink;

		if (document.all)
		{
			document.getElementById(pictureID).style.filter=
				"blendTrans(duration=1)";
			document.getElementById(pictureID).filters.blendTrans.Apply();
		}
		document.getElementById(pictureID).src = nextImage;
		document.getElementById(linkID).href = nextLink;
		if (document.all)
		{
			document.getElementById(pictureID).filters.blendTrans.Play();
		}
		setTimeout("RunSlideShowWithLinks('"+pictureID+"','"+linkID+"','"+futureImages+"',"+displaySecs+")",
			displaySecs*1000);
		// Identify the next image to cache.
		separator = futureImages.indexOf(";");
		nextImage = futureImages.substring(0,separator);
	} else {
		setTimeout("RunSlideShowWithLinks('"+pictureID+"','"+linkID+"','"+imageLinks+"',"+displaySecs+")",250);
	}
	// Cache the next image to improve performance.
	if (slideCache[nextImage] == null) {
		slideCache[nextImage] = new Image;
		slideCache[nextImage].loaded = false;
		slideCache[nextImage].onload = function(){this.loaded=true};
		slideCache[nextImage].src = nextImage;
	}		
}

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 rowOverEffect(object) {
  if (object.className == 'moduleRow') object.className = 'moduleRowOver';
}

function rowOutEffect(object) {
  if (object.className == 'moduleRowOver') object.className = 'moduleRow';
}

function popupWindow(url) {
  window.open(url,'popupWindow','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=yes,copyhistory=no,width=100,height=100,screenX=150,screenY=150,top=150,left=150')
}

/* ------------------------------------------------------
*  JavaScript Object Actions Library
*  (c) 2004 Evdokimov Dmitry
*/

opera = (navigator.userAgent.indexOf('Opera') >= 0)? true : false;
dom = (document.getElementById && !opera)? true : false;
ie4 = (document.all && !dom && !opera)? true : false;
nn4 = (document.layers)? true : false;

/////////////////////////////////////////////////////////////////////
// Cross-browser function SetValue(Identifier, Value) - sets value to 
// element attribute 'value'. Elemesnt is searched on identifier 
// 


function SetValue(Ident, Val)
{
        var ChangedElement = (dom) ? document.getElementById(Ident) : document.all[Ident];
        ChangedElement.value = Val; 
}


function SetAvailability(Ident, Val)
{
        
		var ChangedElement = (dom) ? document.getElementById(Ident) : document.all[Ident];

        ChangedElement.disabled = Val; 
}

function SetFocus(Ident)
{
        var ChangedElement = (dom) ? document.getElementById(Ident) : document.all[Ident];

        ChangedElement.focus(); 
}


function checkComment(Ident)
{
	SetAvailability('custom_text', true); 
	SetValue('custom_text', '');
			
	var multisel_name = (dom) ? document.getElementById(Ident) : document.all[Ident];
	if ( (multisel_name.value == '18') ) 
	{
		SetAvailability('custom_text', false); 
		SetFocus('custom_text');
	}

}

function checkImageOptions(Ident)
{
	
	var multisel_name = (dom) ? document.getElementById(Ident) : document.all[Ident];
	if ( (multisel_name.value == '19') ) 
	{
		SetAvailability('custom_file', false); 
		SetFocus('custom_file');
	}
	else
	{
		SetAvailability('custom_file', true);
	}
		
	
}