// last selected Tab
var old_tab = null;
// styles for events
var styles = {
  'over' : ['#ccc', 'pointer','rgb(0,0,0)'],
  'out'  : ['#ECE9D5', 'auto','rgb(0,0,0)'],
  'click': ['rgb(255,255,255)', 'default','#222']
};

// handler for Tabs
function selTab( tab, type_select )
{
  // method ignore for select Tab
  if (tab.className != 'sel-tabs')
  {
    with (tab.style)
    {
      if (type_select == 1) // onMouseOver
      {
        // set background
        backgroundColor = styles['over'][0];
        // set cursor type
        cursor = styles['over'][1];
        // set color
        color  = styles['over'][2];
      }
      else if (type_select == 2)  // onClick
      {
        if (old_tab)
        {
          // unset of class name
          old_tab.className = '';
          // reconstruction of default style
          selTab( old_tab, 0 );
        }
        // set class name (for the selected Tab)
        tab.className = 'sel-tabs';
        // set background
        backgroundColor = styles['click'][0];
        // set cursor type
        cursor = styles['click'][1];
        // set color
        color  = styles['click'][2];
        // save select tab
        old_tab = tab;
      }
      else // onMouseOut
      {
        // set background
        backgroundColor = styles['out'][0];
        // set cursor type
        cursor = styles['out'][1];
        // set color
        color  = styles['out'][2];
      }
    }
  }
}


// Workbook Parameter Validation
//   http://www.tneoh.zoneit.com/javascript/js_func.html
function validateParms(parmTypes,checkMulti)
{
	var retVal=true;
	if ( parmTypes != "" && parmTypes != null ) {
		var parmArr = parmTypes.split('~@~');
		for ( i=0;i<parmArr.length;i++) {
			var parmVals = parmArr[i];
			var parmTokens = parmVals.split(',');
			if ( parmTokens.length == 3 ) {			
				var parmID = parmTokens[0];
				var parmName = parmTokens[1];
				var parmType = parmTokens[2];
				var parmH   = document.getElementById(parmID);
				var currVal = parmH.value;
				
				if ( parmH ) {
					if ( parmType == "Integer" && !isInteger(trim(currVal)) ) {
						alert("ERROR: Please enter a valid integer: '" + parmName + "'");
						retVal=false;
					} else if ( parmType == "UnsignedInteger" && !isUnsignedInteger(trim(currVal)) ) {
						alert("ERROR: Please enter a positive integer: '" + parmName + "'");
						retVal=false;
					} else if ( parmType == "Real" && !isReal(currVal) ) {
						alert("ERROR: Please enter a real number: '" + parmName + "'");
						retVal=false;
					} else if ( parmType == "UnsignedReal" && !isUnsignedReal(currVal) ) {
						alert("ERROR: Please enter a positive real number: '" + parmName + "'");
						retVal=false;
					} else if ( parmType == "Email" && !isEmail(trim(currVal)) ) {
						alert("ERROR: Please enter a valid email address: '" + parmName + "'");
						retVal=false;
					} else if ( parmType == "URL" && !isURL(trim(currVal)) ) {
						alert("ERROR: Please enter a valid URL: '" + parmName + "'");
						retVal=false;
					} else if ( parmType == "Date" && !isDate(trim(currVal)) ) {
						alert("ERROR: Please enter a valid date: '" + parmName + "'. Date format: YYYY-MM-DD");
						retVal=false;
					} else if ( parmType == "Username" && !isUsername(trim(currVal)) ) {
						alert("ERROR: Please enter a valid username: '" + parmName + "'.");
						retVal=false;
					} else if ( parmType == "AlphaNum" && !isAlphaNum(trim(currVal)) ) {
						alert("ERROR: Please enter a valid alphanumeric, [A-Z][0-9] : '" + parmName + "'.");
						retVal=false;
					} else if ( checkMulti && ( parmType == "ListMultiNum" || parmType == "ListMultiStr") ) {
						var selectedItems = getSelected(parmH);
						if (selectedItems.length == 0 ) {
							alert("ERROR: Please make one or more selection : '" + parmName + "'.");
							return false;
						}						
					}
				}
			}
		}
	}
	return retVal;
}

function getSelected(elem) {
      var selected = new Array();
      var index = 0;
      for (var intLoop=0; intLoop < elem.length; intLoop++) {
         if (elem[intLoop].selected) {
            index = selected.length;
            selected[index] = new Object;
            selected[index].value = elem[intLoop].value;
            selected[index].index = intLoop;
         }
      }
      return selected;
}

function formatSelected(sel, ticks) {
	var strSel = "";
	var strVal = "";
	for (var item in sel) {
		if ( sel[item].value==undefined ) {
			strVal = "";	
		} else {
			if ( ticks ) {
				var sVal = sel[item].value;
				sVal = sVal.replace(/'/g,"\'");
				strVal = "'" + sVal + "'";
			} else {
				strVal = sel[item].value;
			}			
			if ( strSel == "" ) {
				strSel = strVal;
			} else {
				strSel += "," + strVal;
			}
		}

	}
	return strSel;
}



function isAlphaNum(s)
{ 
	var numb = '0123456789';
	var lwr = 'abcdefghijklmnopqrstuvwxyz';
	var upr = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ';
 	var val = numb + lwr + upr;
 	
  	if (s == "") return false;
  	for (i=0; i<s.length; i++) {
    		if (val.indexOf(s.charAt(i),0) == -1) return false;
  	}
  	return true;
}


function isInteger(s) {
	return (s.toString().search(/^-?[0-9]+$/) == 0);
}

function isUnsignedInteger(s) {
	return (s.toString().search(/^[0-9]+$/) == 0);
}

function isReal(str) {
	str = trim(str);		
	var reFloat = /(^-?\d\d*\.\d*$)|(^-?\d\d*$)|(^-?\.\d\d*$)/;	
	return reFloat.test( str )
}

function isUnsignedReal(str) {
	str = trim(str);		
	var reFloat = /(^\d\d*\.\d*$)|(^\d\d*$)|(^\.\d\d*$)/;	
	return reFloat.test( str )
}


function isUsername(s) {
	var reUser = /[\x00-\x1F\x7F<>"\'%&]/;
	
	if ( reUser.test(s) ) {
		return false;
	}
	return true;
}


function isEmail(argvalue) {

	if (argvalue.indexOf(" ") != -1)
		return false;
	else if (argvalue.indexOf("@") == -1)
		return false;
	else if (argvalue.indexOf("@") == 0)
		return false;
	else if (argvalue.indexOf("@") == (argvalue.length-1))
		return false;

	var arrayString = argvalue.split("@");

	if (arrayString[1].indexOf(".") == -1)
		return false;
	else if (arrayString[1].indexOf(".") == 0)
		return false;
	else if (arrayString[1].charAt(arrayString[1].length-1) == ".") {
		return false;
  	}
 	
  	return true;
}

function isURL(argvalue) {

  if (argvalue.indexOf(" ") != -1)
    return false;
  else if ( argvalue.indexOf("http://") == -1 && argvalue.indexOf("https://") == -1 )
    return false;
  else if (argvalue == "http://" || argvalue == "https://")
    return false;
  else if ( argvalue.indexOf("http://") > 0 || argvalue.indexOf("https://") > 0 )
    return false;

  argvalue = argvalue.substring(7, argvalue.length);
  if (argvalue.indexOf(".") == -1)
    return false;
  else if (argvalue.indexOf(".") == 0)
    return false;
  else if (argvalue.charAt(argvalue.length - 1) == ".")
    return false;

  if (argvalue.indexOf("/") != -1) {
    argvalue = argvalue.substring(0, argvalue.indexOf("/"));
    if (argvalue.charAt(argvalue.length - 1) == ".")
      return false;
  }

  if (argvalue.indexOf(":") != -1) {
    if (argvalue.indexOf(":") == (argvalue.length - 1))
      return false;
    else if (argvalue.charAt(argvalue.indexOf(":") + 1) == ".")
      return false;
    argvalue = argvalue.substring(0, argvalue.indexOf(":"));
    if (argvalue.charAt(argvalue.length - 1) == ".")
      return false;
  }

  return true;

}


function isDate(s) {

	var MonthDays = Array();  
	MonthDays[0] = 31;  
	MonthDays[1] = 0;  
	MonthDays[2] = 31;  
	MonthDays[3] = 30;  
	MonthDays[4] = 31;  
	MonthDays[5] = 30;  
	MonthDays[6] = 31;  
	MonthDays[7] = 31;  
	MonthDays[8] = 30;  
	MonthDays[9] = 31;  
	MonthDays[10] = 30;  
	MonthDays[11] = 31;  
   
	var daysInMonth; 


	s=trim(s);
	var reDate = /^(\d{4})\-(\d{2})\-(\d{2})$/; 
	if ( reDate.test( s ) ) {
		var aData = s.split('-');  
		
		var yearSelected = parseInt(aData[0], 10);  
		var monthSelected = parseInt(aData[1], 10);  
		var daySelected = parseInt(aData[2], 10);  
		
		if (isNaN(daySelected) || isNaN(monthSelected) || isNaN(yearSelected))  
			return false; 
			
		if (monthSelected == 2)  
			daysInMonth = (((yearSelected % 4 == 0) && ((!(yearSelected % 100 == 0)) || (yearSelected % 400 == 0))) ? 29 : 28 );  
		else  
			daysInMonth = MonthDays[monthSelected - 1];


		if (daySelected < 1 || daySelected > daysInMonth)  
			return false;  
		if (monthSelected < 1 || monthSelected > 12)  
			return false;  
		if (yearSelected < 1)  
			return false;  

		return true;
		
	} else {
		return false;
	}
}



function isEmpty(s)
{
      return ((s == null) || (s.length == 0))
}

function isDigit (c)
{
      return ((c >= "0") && (c <= "9"))
}


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 urlencode(str) {
	return escape(str).replace(/\+/g,'%2B').replace(/%20/g, '+').replace(/\*/g, '%2A').replace(/\//g, '%2F').replace(/@/g, '%40');
}