/*
  $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 rowOverEffect(object) {
  if (object.className == 'row1') object.className = 'dataTableRowOver1';
  if (object.className == 'row0') object.className = 'dataTableRowOver0';
}

function rowOutEffect(object) {
  if (object.className == 'dataTableRowOver1') object.className = 'row1';
  if (object.className == 'dataTableRowOver0') object.className = 'row0';
}
 
 

var tabs = new Array();
tabs[0] = "details";
tabs[1] = "sched";
tabs[2] = "participants";
tabs[3] = "desc";
tabs[4] = "image";
tabs[5] = "attribute";
tabs[6] = "SEO";

// detect browser
NS4 = (document.layers) ? 1 : 0;
IE4 = (document.all) ? 1 : 0;
// W3C stands for the W3C standard, implemented in Mozilla (and Netscape 6) and IE5
W3C = (document.getElementById) ? 1 : 0;	

function makeVisible ( name ) {
  var ele;

  if ( W3C ) {
    ele = document.getElementById(name);
  } else if ( NS4 ) {
    ele = document.layers[name];
  } else { // IE4
    ele = document.all[name];
  }

  if ( NS4 ) {
    ele.visibility = "show";
  } else {  // IE4 & W3C & Mozilla
    ele.style.visibility = "visible";
  }
}

function makeInvisible ( name ) {
  if (W3C) {
    document.getElementById(name).style.visibility = "hidden";
  } else if (NS4) {
    document.layers[name].visibility = "hide";
  } else {
    document.all[name].style.visibility = "hidden";
  }
}

function showTab (name) {
	if (! document.getElementById) { return true; }
	for (var i=0; i<tabs.length; i++) {
		var tname = tabs[i];
		var tab = document.getElementById("tab_" + tname);
		if (tab) {
			tab.className = (tname == name) ? "tabfor" : "tabbak";
		}
		var div = document.getElementById("tabscontent_" + tname);
		if (div) {
			div.style.display = (tname == name) ? "block" : "none";
		}
	}
	return false;
}
 
 /**
* Toggles the check state of a group of boxes
*
* Checkboxes must have an id attribute in the form cb0, cb1...
* @param The number of box to 'check'
*/
function checkAll( n ) {
	var f = document.adminForm;
	var c = f.toggle.checked;
	var n2 = 0;
	for (i=0; i < n; i++) {
		cb = eval( 'f.cb' + i );
		if (cb) {
			cb.checked = c;
			n2++;
		}
	}
	if (c) {
		document.adminForm.boxchecked.value = n2;
	} else {
		document.adminForm.boxchecked.value = 0;
	}
}


function isChecked(isitchecked){
	if (isitchecked == true){
		document.adminForm.boxchecked.value++;
	}
	else {
		document.adminForm.boxchecked.value--;
	}
}

function ObjectDiv( div , content )
{
	if ( document.getElementById )
	{
		document.getElementById( div ).innerHTML = content;
	}
	else
	{
		if ( document.layers )
		{
			document.div.innerHTML = content;
		}
		else
		{
			document.all.div.innerHTML = content;
		}
	}
}

function Goto( FILE , METHOD , DATA , div )
{
	if( METHOD == 'GET' && DATA != null )
	{
		FILE += '?' + DATA;
		DATA = null;
	}

	var httpRequestM = null;

	if( window.XMLHttpRequest )
	{   // Firefox
		httpRequestM = new XMLHttpRequest();
	}
	else if( window.ActiveXObject )
	{   // Internet Explorer
		httpRequestM = new ActiveXObject( "Microsoft.XMLHTTP" );
	}
	else
	{   // XMLHttpRequest non supporté par le navigateur
		return "Votre navigateur ne supporte pas les objets XMLHTTPRequest...";
	}

	httpRequestM.open( METHOD , FILE , true );
	httpRequestM.onreadystatechange = function()
	{
		if( httpRequestM.readyState == 4 )
		{
			ObjectDiv( div , httpRequestM.responseText );
		}
	}

	if( METHOD  == 'POST' )
	{
		httpRequestM.setRequestHeader( "Content-type" , "application/x-www-form-urlencoded" );
	}

	httpRequestM.send( DATA );
}

function ViewContent( div , href , method , data )
{
	var wait = "<div align='center' height='80'>" +
	"<b><font style='color:red;' text-decoration='blink;'>Loading.....</font></b><br><br>" +
	"<img src='./images/loading.gif' border='0' alt=''>" +
	"</div>";

	ObjectDiv( div , wait );
	Goto( href , method , data , div );
	return false;
}