/*
  $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 createRequestObject() 
{
		var ro;
		var browser = navigator.appName;
		if(browser == "Microsoft Internet Explorer")
		{
			ro = new ActiveXObject("Microsoft.XMLHTTP");
		}
		else
		{
			ro = new XMLHttpRequest();
		}
		return ro;
}
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 openPopup(url)
{
	var popwindow=window.open(url,'gocomp','width=500,height=250,top=300,left=200');
	popwindow.focus(); return false;
}

function bookmarksite(title,url)
{
	if (window.sidebar)
	{ // firefox
		window.sidebar.addPanel(title, url, "");
	}
	else if(window.opera && window.print)
	{ // opera
		var elem = document.createElement('a');
		elem.setAttribute('href',url);
		elem.setAttribute('title',title);
		elem.setAttribute('rel','sidebar');
		elem.click();
	}
	else if(document.all)
	{// ie
		window.external.AddFavorite(url, title);
	}
}
function isNumber(e)
{
	if(e.which) // Netscape/Firefox/Opera
	{
		val = e.which
	}
	else if(window.event) // IE
	{
		val = e.keyCode
	}
	if (val!=8)
	{ //if the key isn't the backspace key (which we should allow)
        if(val>47 && val<58)
            return true;
		else
			return false;	 //disable key press
	} //disable key press
}
function checkemail(email)
{
	
	var filter=/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i
	if (filter.test(email))
		return true;
	else
		return false;
}
//to get the text of selected index

function getText(code,textname)
{ 
	countryname=code.options[code.selectedIndex].text;
	document.getElementById(textname).value=countryname;
}
function removeSpaces(string) 
{
 return string.split(' ').join('');
}
function trim(str, chars) {
    return ltrim(rtrim(str, chars), chars);
}

function ltrim(str, chars) {
    chars = chars || "\\s";
    return str.replace(new RegExp("^[" + chars + "]+", "g"), "");
}

function rtrim(str, chars) {
    chars = chars || "\\s";
    return str.replace(new RegExp("[" + chars + "]+$", "g"), "");
}
function isSizeExceeded(val,e)
{
	if(e.which) // Netscape/Firefox/Opera
	{
		keyval = e.which
	}
	else if(window.event) // IE
	{
		keyval = e.keyCode;
	}
	if (keyval!=8)
	{ 
		if(val.length>50)
		{
			return false;
		}
		else
			return true;
	}
}

function checkAll(chkall,frm)
{
	
	var len=frm.elements.length;
		var val;
		if(chkall.checked)
			val=true;
		else
			val=false;
		for(var i=0;i<len;i++)
		{
			if (frm.elements[i].type == 'checkbox')	
				frm.elements[i].checked=val;
		}
}
function addToCart(qty,id)
{
	url = window.location;
	/*
	alert(url);
	indexofquerystring=url.indexOf('?');
	if(indexofquerystring>0)
		url+='?';
	else
	
		url+='&';
	
		url+='&pid='+id+'&action=add&qty='+qty;
	
	window.location=url;
	*/
	/*xmlHttp=createRequestObject();
	if (xmlHttp==null)
	{
	alert ("Your browser does not support AJAX!");
	return;
	} 
	url="shoppingcart.php?pid="+id+"&action=add&qty="+qty;
	xmlHttp.onreadystatechange=function()
	{
			if(xmlHttp.readyState==4)
			{ 
				location.reload(true);
			}
	};
	xmlHttp.open("GET",url,true);	
	xmlHttp.send(null);
	*/
	window.location='index.php?cpath=shoppingcart&pid='+id+'&action=add&qty='+qty;
}