/////////////////////////////////////////////////////////////
//		Common Javascript functions
/////////////////////////////////////////////////////////////


function IsNumeric(value_in) {
		// make sure it's numeric
		// returns true if numeric, false otherwise
		for (var i=0; i<value_in.length; i++) {
			var ch = value_in.charAt(i)
			if (ch < "0" || ch > "9") {
				return false
			}
		}
		return true
}


function CheckClosingDates()
{	
		var fromDate = document.search.closefrom.value
		var toDate = document.search.closeto.value
		var err_msg = "From Closing date must be less than or equal to To Closing date!"
		if (!IsBlank(fromDate)) {
			if (IsValidDate("From Date", fromDate)) {
				document.search.closefrom.value = date_value
				fromDate = document.search.closefrom.value
				
				date_value = ""		

				var month_from = fromDate.substring(0, 2);
				var day_from = fromDate.substring(3, 5);
				var year_from = fromDate.substring(6, 10);
				from_date = new Date(year_from, month_from-1, day_from);
	                  if (!IsBlank(toDate))
      	            {  					
					if (IsValidDate("To Date", toDate))
                  	      {
						toDate = document.search.closeto.value
						var month_to = toDate.substring(0, 2);
						var day_to = toDate.substring(3, 5);
						var year_to = toDate.substring(6, 10);
						to_date = new Date(year_to, month_to-1, day_to);
						//check if larger than to date
						if(!CompareDate(from_date, to_date))
						{
							alert(err_msg)
							return false
						}
					}
					else
					{
					  //Invalid Date
					  return false
					}
				}
				else
				{
				  if (document.search.closedate.checked){
			       	alert("Pool Closing Date is required when Pool Closing Date checkbox is selected!")
				      return false
		              }
				}			
			}
			else {
				
				return false
			}
		}
		else{

			if (document.search.closedate.checked)
			{
				alert("Pool Closing Date is required when Pool Closing Date checkbox is selected!")				
	        	            return false
          	        }
		}
	return true;
}


function CheckSettlementDates()
{
		var fromDate = document.search.settlementfrom.value
		var toDate = document.search.settlementto.value
		var err_msg = "From Settlement date must be less than or equal to To Settlement date!"
		if (!IsBlank(fromDate)) {
			if (IsValidDate("From Date", fromDate)) {
				document.search.settlementfrom.value = date_value
				fromDate = document.search.settlementfrom.value
				
				date_value = ""		

				var month_from = fromDate.substring(0, 2);
				var day_from = fromDate.substring(3, 5);
				var year_from = fromDate.substring(6, 10);
				from_date = new Date(year_from, month_from-1, day_from);
	                  if (!IsBlank(toDate))
      	            {  					
					if (IsValidDate("To Date", toDate))
                  	      {
						toDate = document.search.settlementto.value
						var month_to = toDate.substring(0, 2);
						var day_to = toDate.substring(3, 5);
						var year_to = toDate.substring(6, 10);
						to_date = new Date(year_to, month_to-1, day_to);
						//check if larger than to date
						if(!CompareDate(from_date, to_date))
						{
							alert(err_msg)
							return false
						}
					}
					else
					{
					  //Invalid Date
					  return false
					}
				}
				else
				{
				  if (document.search.closedate.checked){
			       	alert("Pool Settlement Date is required when Pool Settlment Date checkbox is selected!")
				      return false
		              }
				}			
			}
			else {
				
				return false
			}
		}
		else{

			if (document.search.settlementdate.checked)
			{
				alert("Pool Settlement Date is required when Pool Settlement Date checkbox is selected!")				
	        	            return false
          	        }
		}
	return true;
}


function IsLetter(theChar)
{
	var charArray = new Array(
		' ', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H',
		'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q',
		'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
		'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i',
		'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r',
		's', 't', 'u', 'v', 'w', 'x', 'y', 'z');
	for(var j=0; j < charArray.length; j++)
		if(theChar == charArray[j])
			return true;
	return false;
}

function IsDigit(theChar)
{
	var charArray = new Array(
		'0', '1', '2', '3', '4', '5', '6', '7', '8', '9');
	
	for(var j=0; j < charArray.length; j++)
		if(theChar == charArray[j])
			return true;
	return false;
}

function IsBlank(value_in) {
		var blank_cnt = 0
		

		if (value_in == "") {
			return true
		}
		else {
			for (var i=0; i<value_in.length; i++) {
				if (value_in.charAt(i) == ' ') {
					blank_cnt++
				}
			}
			return ((blank_cnt == value_in.length) ? true : false)
		}
}


function IsValidDate(field_name, date_in) {
		var separator_cnt = 0
		var month_tmp = ""
		var day_tmp = ""
		var year_tmp = ""
		var EARLY = 1900
		var LATE = 2100
		days_in_month = new Array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31)

		// dates are expected in the mm/dd/yyyy format;  mm-dd-yyyy and
		// mmddyyyy will also be accepted; if date is entered without
		// separators, there must be 2 digits for the month and day and
		// 4 digits for the year

		// separate month, day, and year components
		for (var i=0; i<date_in.length; i++) {
			var ch = date_in.charAt(i)

			// strip off dashes and slashes
			if (ch == '/' || ch == '-') {
				separator_cnt++
				if (separator_cnt > 2) {
					alert(field_name + "contains an invalid date.  Please enter in mm/dd/yyyy format.")
					return false
				}
			}
			else {
				if (!separator_cnt) {
					month_tmp += ch
				}
				else {
					if (separator_cnt == 1) {
						day_tmp += ch
					}
					else {
						year_tmp += ch
					}
				}
			}
		}

		// if no separators, length should = 8, else give error
		if (!separator_cnt) {
			if (date_in.length != 8) {
				alert(field_name + " contains an invalid date.  Please enter in mm/dd/yyyy format.")
				return false
			}
			else {
				// get month, day, and year values
				month_tmp = date_in.substring(0, 2);
				day_tmp = date_in.substring(2, 4);
				year_tmp = date_in.substring(4, 8);
			}
		}

		// make sure month, day, and year are numeric
		if (!IsNumeric(month_tmp) || !IsNumeric(day_tmp) || !IsNumeric(year_tmp)) {
			alert(field_name + " must be a numeric date.");
			return false;
		}

		var month_num = parseInt(month_tmp,10);
		var day_num = parseInt(day_tmp,10);
		var year_num = parseInt(year_tmp,10);

                // check for leap year
                if ((!(year_num % 4) && (month_num == 2 && day_num == 29))) {
				//return false
                }
		else {
			// make sure everything's valid
			if ((month_num > 12 || month_num < 1) || (day_num > days_in_month[month_num-1]) || (day_num < 1) || (year_num < EARLY) || (year_num > LATE)) {
				alert(field_name + " Error - Please make sure the month is between 1 and 12, day is valid for the month specified, and a valid 4 digit year is entered.")
				return false
			}
		}

		// make sure day and month are 2 digits
		if (month_num < 10 && month_tmp.length == 1) {
			month_tmp = 0 + month_tmp
		}
		if (day_num < 10 && day_tmp.length == 1) {
			day_tmp = 0 + day_tmp
		}
		
	 
		
		date_value = month_tmp + '/' + day_tmp + '/' + year_tmp
		
		return true
}

function isHoliday(Date, holidays)
{
		var err_msg = "This is a holiday, please choose another date!" 
		for(var i=0; i<holidays.length; i++) {
		    var holiday = holidays[i].value;
		    if(holiday.match(Date)) {
		    	alert(err_msg);
			return true;
		    }
		}

		return false;
		
}

function isWeekend(Date)
{
		var err_msg = "This is a weekend, please choose another date!"
		
		this_day = Date.getDay();

		//alert(this_day);
		if((this_day == 0) || (this_day == 6))
		{
			alert(err_msg);
			return true;
		}
		else 
			return false;
}
function CompareRates(rate1,rate2)
{
 var num1 = parseFloat(rate1)
 var num2 = parseFloat(rate2)
 if (num1 < num2)
	return false
 else
   return true 	
 
}
function CheckForResultSet()
{
  var flag = true;
 
//  var sponsor = document.search.sponsor.value
  var prefix = document.search.Prefixcode.value
  var fromDate = document.search.closefrom.value
  var toDate = document.search.closeto.value


   var index1 = document.search.yearfrom.selectedIndex;
   var fromYear = document.search.yearfrom.options[index1].value
    index1 = document.search.yearto.selectedIndex;
   var toYear = document.search.yearto.options[index1].value
    index1 = document.search.monthfrom.selectedIndex;
   var fromMonth = document.search.monthfrom.options[index1].value
    index1 = document.search.monthto.selectedIndex;
   var toMonth = document.search.monthto.options[index1].value
  
  if (document.search.checkfix.checked && document.search.checksfmbs.checked)
  {
//          alert("CheckFix Selected")
	  if (document.search.issuedate.checked) {
//		alert("IssueDate Checked" )
		
				
	     if (parseInt(toYear) > parseInt(fromYear))
             {
		flag = CheckOtherFields()
//                alert("To Year > from Year")
              }
	      else 
              {
                
		if ((parseInt(toMonth)-parseInt(fromMonth)) <= 2)
                 flag = true
                 else                   
                    flag = CheckOtherFields()
             }
	   }	         
	   else
	   {
		
		if (document.search.closedate.checked)
                {
//			alert("CheckFix Selected CLOSE Date Checked")
		     if (!IsDateRangeLarge(fromDate,toDate,90))
			flag = true
		      else
			 flag = CheckOtherFields()
                }
                else
		     flag = CheckOtherFields()
		         
  
	    } 


       }




         if (!flag)	 
             alert("WARNING: Your selection criteria may produce large result set. Please narrow down your selection")
         
return flag;
  
         
	

}
function CheckOtherFields()
{
//  var sponsor = document.search.sponsor.value
  var index = document.search.Prefixcode.selectedIndex
  var prefix = document.search.Prefixcode.options[index].value
  var fromRate = document.search.passthrufrom.value
  var toRate = document.search.passthruto.value
  var flag = true
   

	if  (prefix == "non")
           if ( !IsBlank(fromRate) && !IsBlank(toRate))
		if (parseFloat(toRate)-parseFloat(fromRate) >= 1.0)
				  if (parseFloat(fromRate) <= 6.0 && parseFloat(toRate) >= 7.0)
	                            flag = false;
        	                   else
                	              flag = true;
                else
	        	if (parseFloat(fromRate) >= 6.0 && parseFloat(toRate) <= 7.0)
					flag = false;
 			else
					flag = true;
           else
              flag = false
			
        else
           flag = true;

return flag;
}
function CheckForm()
{
    var flag = false;
	
	if(!CheckProduct()){           
          document.search.checkmegas.focus();
          return false;
        }   
		
	if(!CheckPool()){           
          document.search.checkarm.focus();
          return false;
        }      
	
	if(!CheckIssueDates()) {
            document.search.issuedate.focus();
            return false;
            
        }
	if(!CheckPostDates()) {
           document.search.closedate.focus();
            return false; 
           
        }

	if(!CheckSettleDates()) {
           document.search.settlementdate.focus();
            return false;            
        }

	if(!CheckPassThruRates()) {
            
            document.search.passthrufrom.focus();
            return false;
        }
//	if (!CheckForResultSet())
//	{
//        	document.search.passthrufrom.focus();
//               return false;		
//
//	}

       
       return true;
          
	 
}

function CheckPassThruRates()
{
   var fromRate = document.search.passthrufrom.value
   var toRate = document.search.passthruto.value
//   alert("CheckPassThru")
   if (IsBlank(fromRate))
	if (IsBlank(toRate)) 
		return true;
	else
	{
	  alert("From Pass Through Rate must be supplied along with To Pass through Rate")
	  return false;
	}
    else
    {
	if (IsBlank(toRate)) 
	{
	  alert("To Pass Through Rate must be supplied along with the From Pass Through Rate")
	  return false;
	}
    }
	
	
   	
	if (IsRateValid(fromRate))
		if (IsRateValid(toRate))
			if (parseFloat(toRate) >= parseFloat(fromRate))
				return true;
                        else
			  alert("To Rate can not be less than From Rate") 
        	         
			
  return false;
			
}

function CheckProduct()
{
// alert("Check Product")  
 if (!document.search.checkmegas.checked)
	if (!document.search.checksfmbs.checked)
	{
        alert("You must select a Product type")
	  return false;
      }
      else
	  return true;
    else      
	  return true;
}

function CheckPool()
{
// alert("Check Pool")  
 if (!document.search.checkarm.checked)
	if (!document.search.checkfix.checked)
	{
        alert("You must select an Amortization type")
	  return false;
      }
      else
	  return true;
    else      
	  return true;
}


function CheckIssueDates()
{
   
   
   
   var index1 = document.search.yearfrom.selectedIndex;
   var fromYear = document.search.yearfrom.options[index1].value
    index1 = document.search.yearto.selectedIndex;
   var toYear = document.search.yearto.options[index1].value
    index1 = document.search.monthfrom.selectedIndex;
   var fromMonth = document.search.monthfrom.options[index1].value
    index1 = document.search.monthto.selectedIndex;
   var toMonth = document.search.monthto.options[index1].value
  
   if (!document.search.issuedate.checked)
   {
        
	return true;
   }
   else
   {
         
	if (parseInt(fromYear) > parseInt(toYear))
	{
          alert("From Year Issue Date can not be greater than To Year")
	  return false;
	}
        else
        {
           if (parseInt(fromYear) == parseInt(toYear))        
		if (parseInt(fromMonth) > parseInt(toMonth))
                {
                   alert("From Issue Month can not be greater than To Issue Month for the same year")
                   return false;
                }
                else
 		  return true;
           else
             return true;
        }          
	  
   } 
	  

}

function CheckPostDates()
{
   var fromDate = document.search.yearfrom.value
   var toDate = document.search.yearto.value
 
//   alert("CheckPostDates")
   if (!document.search.closedate.checked)
	return true;
   else
    if (!CheckClosingDates())
	return false;
    else
	return true;    
}

function CheckSettleDates()
{
//   var fromDate = document.search.yearfrom.value
//   var toDate = document.search.yearto.value
 
//   alert("CheckPostDates")
   if (!document.search.settlementdate.checked)
	return true;
   else
    if (!CheckSettlementDates())
	return false;
    else
	return true;    
}




function CompareDate(Date1, Date2)
{
                 
                var year1 = Date1.getYear();
                var month1_tmp = Date1.getMonth();
                if(month1_tmp < 10) var month1 = "0" + month1_tmp;
                else month1 = month1_tmp;
                var day1_tmp = Date1.getDate();
                if(day1_tmp < 10) var day1 = "0" + day1_tmp;
                else day1 = day1_tmp;
                var year2 = Date2.getYear();
                var month2_tmp = Date2.getMonth();
                if(month2_tmp < 10) var month2 = "0" + month2_tmp;
                else month2 = month2_tmp;
                var day2_tmp = Date2.getDate();
                if(day2_tmp < 10) var day2 = "0" + day2_tmp;
                else day2 = day2_tmp;

                var time1 = parseInt("0"+year1+month1+day1, 10);
                var time2 = parseInt("0"+year2+month2+day2, 10);
		
		//alert(time1);
		//alert(time2);
                 
                if(time1 > time2)
                {
                        //alert(err_msg);
                        return false;
                }
                else return true;
}

function IsDateRangeLarge(Date1, Date2, num)
{
		
		var month_from = Date1.substring(0, 2);
		var day_from = Date1.substring(3, 5);
		var year_from = Date1.substring(6, 10);
		var fromDate = new Date(year_from, month_from-1, day_from);
                var year1 = fromDate.getYear();

		var month_to = Date2.substring(0, 2);
		var day_to = Date2.substring(3, 5);
		var year_to = Date2.substring(6, 10);
		var toDate = new Date(year_to, month_to-1, day_to);
               




                var month1_tmp = fromDate.getMonth();
                if(month1_tmp < 10) var month1 = "0" + month1_tmp;
                else month1 = month1_tmp;
                var day1_tmp = fromDate.getDate();
                if(day1_tmp < 10) var day1 = "0" + day1_tmp;
                else day1 = day1_tmp;
                var year2 = toDate.getYear();
                var month2_tmp = toDate.getMonth();
                if(month2_tmp < 10) var month2 = "0" + month2_tmp;
                else month2 = month2_tmp;
                var day2_tmp = toDate.getDate();
                if(day2_tmp < 10) var day2 = "0" + day2_tmp;
                else day2 = day2_tmp;

                var time1 = parseInt("0"+year1+month1+day1, 10);
                var time2 = parseInt("0"+year2+month2+day2, 10);
		
                 
                if ((time2-time1) > parseInt(num))
                {
                       
                        return true;
                }
                else return false;
}

function IsRateValid(rate)
{
   var varRate = rate;
   var rateChar = "";
   var decCount = 0;
 
  
   for(var i=0; i<varRate.length; i++)
   {
	if(varRate.charAt(i) == '.')
	 decCount++
      else
       if(!IsNumeric(varRate.charAt(i)))
       {
           alert("Pass Through Rate must be numeric")
		
		return false
       } 

   }  
//    alert("IsRateValid")     
    if (decCount <= 1)
    {
       if ((parseFloat(rate) > 999) || (parseFloat(rate) < 1))
       {
         alert("Pass Through Rate must be between 1.0 and 999.0")
	 return false;
       }
       else
	return true;
    }
    else
    {
	alert("Pass Through Rate has multiple decimal point")
	return false;
    }

}

////////////////////////////////////////// WZ added 1-6-2003

	function fSetPoolL(cusip,pool){
			var frmObj = document.frmDisplay;
			frmObj.PoolSelected.value = pool;
			frmObj.CusipSelected.value = cusip;
			frmObj.isForDownload.value = "N";
			frmObj.submit();
	}
	function fSetPoolForDownload(pool){
			var frmObj = document.frmDisplay;
			frmObj.PoolForDownload.value = pool;
			frmObj.isForDownload.value = "Y";

			frmObj.submit();
	}

	function checkAllL( ) {
		var formObj = document.frmSelectPool;
		//var checkRemove = formObj.elements[0]; //changed from 0 to 1 pramod
		var checkRemove = formObj.addall; 
		var numberofchecks = formObj.length;

		if ( checkRemove.checked ) 
			for ( i = 1; i < numberofchecks; i++ ) 
					formObj.elements[i].checked = true;
		else 
			for ( i = 1; i < numberofchecks; i++ ) 
					formObj.elements[i].checked = false;
	}

	function removeElement() {
		var formObj = document.frmSelectPool;
		formObj.submit();
	}


	function downLoad() {
		var formObj = document.frmSelectPool;
		formObj.isDownloadReport.value = "Y";
		var numberofchecks = formObj.length;
		var selectedPools = 0;
		var elementName = "";
		for ( i = 1; i < numberofchecks; i++ ) {
			if ( formObj.elements[i].checked == true && 
				formObj.elements[i].name != "remove" &&
				formObj.elements[i].name != "addall" && 
				formObj.elements[i].name != "print" && 
				formObj.elements[i].name != "bodyPage" ) {
				selectedPools++;
				elementName += formObj.elements[i].name+"\n";
			}
		}
		if ( selectedPools > 21 ) {
			alert("You can only download to 20 prospectus supplements at a time. ");
		} else {
			formObj.action="process?formAction=AdvRetrievePDF";
			formObj.submit();
		}
	}

	function downLoadPool() {
		var formObj = document.frmRetrieve;
		formObj.isDownloadReport.value = "Y";
	//	formObj.action="process?formAction=AdvRetrievePDF";
		formObj.submit();
	
	}


	function printReprot() {
		var formObj = document.frmSelectPool;
		var numberofchecks = formObj.length;
		var selectedPools = 0;
		var elementName = "";
		for ( i = 1; i < numberofchecks; i++ ) {
			if ( formObj.elements[i].checked == true && 
				formObj.elements[i].name != "remove" &&
				formObj.elements[i].name != "addall" && 
				formObj.elements[i].name != "print" && 
				formObj.elements[i].name != "bodyPage" ) {
				selectedPools++;
				elementName += formObj.elements[i].name+"\n";
			}
		}
		if ( selectedPools > 21 ) {
			alert("You can only view up to 20 prospectus supplements at a time. ");
		} else {
			formObj.action="process?formAction=AdvRetrievePDF";
			formObj.submit();
		}
	}




	function CCL() {
		var formObj = document.frmSelectPool;
		//var checkRemove = formObj.elements[1]; 
		var checkRemove = formObj.addall; 
		var numberofchecks = formObj.length;

		if ( checkRemove.checked ) 
			for ( i = 1; i < numberofchecks; i++ ) 
					if ( !formObj.elements[i].checked )
						checkRemove.checked = false;
	}

	function fSetPoolR(cusip,pool){
			var frmObj = document.frmDisplay;
			frmObj.CusipSelected.value = cusip;
			frmObj.PoolSelected.value = pool;
			frmObj.isForDownload.value = "N";
			frmObj.submit();
	}

	function fSetValue(val) {
			var formObj = document.frmResult;
			if ( val == "addtolist" ) {
				formObj.caller.value = "addtolist";
			} else {
				formObj.PageNumber.value = val;
			}
			formObj.submit();
	}

	function checkAllR() {
			var formObj = document.frmResult;
			//var checkObj = formObj.elements[0];
			var checkObj = formObj.addall;
			var numberofchecks = formObj.length;
			if ( checkObj.checked )
				for ( i = 1; i < numberofchecks && formObj.elements[i].type == "checkbox"; i++ )
					formObj.elements[i].checked = true;
			else
				for ( i = 1; i < numberofchecks && formObj.elements[i].type == "checkbox"; i++ )
					formObj.elements[i].checked = false;

	}

	function CCR() {
			var formObj = document.frmResult;
			var checkObj = formObj.elements[0];
			var numberofchecks = formObj.length;
			if ( checkObj.checked )
				for ( i = 1; i < numberofchecks && formObj.elements[i].type == "checkbox"; i++ )
					if ( !formObj.elements[i].checked )
						checkObj.checked = false;
	}

////////////////////////////////////////// WZ added 1-6-2003 End