// scm_util.js

// Validates Form Using Function below
function validate(form){

	var bool = true;
	
	//Validate the Insured SSN field if it exists
	if(form.elements["fldssn"]){
		if(IsNumeric(form.elements["fldssn"].value) && form.elements["fldssn"].value.length > 3){	
			//alert("ssn - true");
			document.getElementById("ssnmsg").style.visibility= "hidden";
			//return true;
		}
		else{
			//alert("ssn - false");
			document.getElementById("ssnmsg").style.visibility= "visible";
			bool =  false;	
		}
	}
		 
	//Validate the Insured TIN field if it exists
	if(form.elements["fldtin"]){
		if(IsNumeric(form.elements["fldtin"].value) && form.elements["fldtin"].value.length > 8){	
			//alert("tin - true");
			document.getElementById("tinmsg").style.visibility= "hidden";
			//return true;
		}
		else{
			//alert("ssn - false");
			document.getElementById("tinmsg").style.visibility= "visible";
			bool =  false;	
		}
	}	 

	//Validate the Provider Last Name field if it exists
	if(form.elements["fldprvlname"]){	
		if( !IsNumeric(form.elements["fldprvlname"].value) && form.elements["fldprvlname"].value.length > 0 ){
			//alert("lname - true");
			document.getElementById("lnamemsg").style.visibility= "hidden";	
		}
		else{
			//alert("lname - false");
			document.getElementById("lnamemsg").style.visibility= "visible";
			bool= false;	
		}
	}
	
	//Validate the Date field if it exists.
	if((form.elements["fldreqmo"]) && (form.elements["fldreqdy"]) && (form.elements["fldreqyr"])){
	
		var mo = form.elements["fldreqmo"];
		var da = form.elements["fldreqdy"];
		var yr = form.elements["fldreqyr"];
		
		var valdate = mo.value + da.value + yr.value		
		var date = mo.value + "/"+ da.value + "/" + yr.value
		
		if(valdate.length > 0){	
			if(isDate(date)){
				document.getElementById("datemsg").style.visibility= "hidden";
				//alert("date - true");
			}
			else{
				//alert("date - false");
				document.getElementById("datemsg").style.visibility= "visible";
				bool= false;
			}
		}
	}	
	
	//Validate the Provider Last Name field if it exists
	if(form.elements["fldamount"]){	
		if(form.elements["fldamount"].value.length > 0){
			if( IsCurrency(form.elements["fldamount"].value)){
				//alert("lname - true");
				document.getElementById("billmsg").style.visibility= "hidden";	
			}
			else{
				//alert("lname - false");
				document.getElementById("billmsg").style.visibility= "visible";
				bool= false;	
			}
		}
	}	
	//ADDED for resetting the currentDisplayedMonth for every request
	form.elements["currentDisplayedMonth"].value = 0;
	return bool;
	
	}

// Validates StatsForm Using Function below
	function validateStats(form){
		
		var bool = true;

		//Validate the Date field if it exists.
		if((form.elements["fldfrommo"]) && (form.elements["fldfromdy"]) && (form.elements["fldfromyr"])){
	
			var mo = form.elements["fldfrommo"];
			var da = form.elements["fldfromdy"];
			var yr = form.elements["fldfromyr"];
			
			var valdate = mo.value + da.value + yr.value		
			var date = mo.value + "/"+ da.value + "/" + yr.value
			
			if(valdate.length > 0){	
				if(isDate(date)){
					//document.getElementById("datemsg").style.visibility= "hidden";
					//alert("date - true");
				}
				else{
					alert("The From Date is incorrect");
					//document.getElementById("datemsg").style.visibility= "visible";
					bool= false;
				}
			}
			else{
			
				alert("Please enter a value in the From Date.");
				bool= false;
			}	
		}

		//Validate the Date field if it exists.
		if((form.elements["fldtomo"]) && (form.elements["fldtody"]) && (form.elements["fldtoyr"])){
	
			var mo = form.elements["fldtomo"];
			var da = form.elements["fldtody"];
			var yr = form.elements["fldtoyr"];
			
			var valdate = mo.value + da.value + yr.value		
			var date = mo.value + "/"+ da.value + "/" + yr.value
			
			if(valdate.length > 0){	
				if(isDate(date)){
					//document.getElementById("datemsg").style.visibility= "hidden";
					//alert("date - true");
				}
				else{
					alert("The To Date is incorrect");
					//document.getElementById("datemsg").style.visibility= "visible";
					bool= false;
				}
			}
		}
		
		return bool;		
						
	}
	
	function clearAll (){
	 
		for (i = 0; i< document.forms[0].elements.length; i++){
			
			var next = document.forms[0].elements[i];
			
			if(next.name != "user" && next.value != "Submit"){
			
				next.value = "";
			}		
		}	
	}
	
	function IsNumeric(strString){
	   //  check for valid numeric strings	
	   var strValidChars = "0123456789";
	   var strChar;
	   var blnResult = true;
	
	   if (strString.length == 0) return false;
	
	   //  test strString consists of valid characters listed above
	   for (i = 0; i < strString.length && blnResult == true; i++)
	      {
	      strChar = strString.charAt(i);
	      if (strValidChars.indexOf(strChar) == -1)
	         {
	         blnResult = false;
	         }
	      }
	   return blnResult;
	}
	
	function IsCurrency(strString){
	   //  check for valid numeric strings	
	   var strValidChars = "-.0123456789";
	   var strChar;
	   var blnResult = true;
	
	   if (strString.length == 0) return false;
	
	   //  test strString consists of valid characters listed above
	   for (i = 0; i < strString.length && blnResult == true; i++)
	      {
	      strChar = strString.charAt(i);
	      if (strValidChars.indexOf(strChar) == -1)
	         {
	         blnResult = false;
	         }
	      }
	   return blnResult;
	}

	
	/**
	 * DHTML date validation script. Courtesy of SmartWebby.com (http://www.smartwebby.com/dhtml/)
	 */
	// Declaring valid date character, minimum year and maximum year
	var dtCh= "/";
	var minYear=1900;
	var maxYear=2100;
	
	function isInteger(s){
		var i;
	    for (i = 0; i < s.length; i++){   
	        // Check that current character is number.
	        var c = s.charAt(i);
	        if (((c < "0") || (c > "9"))) return false;
	    }
	    // All characters are numbers.
	    return true;
	}
	
	function stripCharsInBag(s, bag){
		var i;
	    var returnString = "";
	    // Search through string's characters one by one.
	    // If character is not in bag, append to returnString.
	    for (i = 0; i < s.length; i++){   
	        var c = s.charAt(i);
	        if (bag.indexOf(c) == -1) returnString += c;
	    }
	    return returnString;
	}
	
	function daysInFebruary (year){
		// February has 29 days in any year evenly divisible by four,
	    // EXCEPT for centurial years which are not also divisible by 400.
	    return (((year % 4 == 0) && ( (!(year % 100 == 0)) || (year % 400 == 0))) ? 29 : 28 );
	}
	
	function DaysArray(n) {
		for (var i = 1; i <= n; i++) {
			this[i] = 31
			if (i==4 || i==6 || i==9 || i==11) {this[i] = 30}
			if (i==2) {this[i] = 29}
	   } 
	   return this
	}
	
	function isDate(dtStr){
		var daysInMonth = DaysArray(12)
		var pos1=dtStr.indexOf(dtCh)
		var pos2=dtStr.indexOf(dtCh,pos1+1)
		var strMonth=dtStr.substring(0,pos1)
		var strDay=dtStr.substring(pos1+1,pos2)
		var strYear=dtStr.substring(pos2+1)
		strYr=strYear
		if (strDay.charAt(0)=="0" && strDay.length>1) strDay=strDay.substring(1)
		if (strMonth.charAt(0)=="0" && strMonth.length>1) strMonth=strMonth.substring(1)
		for (var i = 1; i <= 3; i++) {
			if (strYr.charAt(0)=="0" && strYr.length>1) strYr=strYr.substring(1)
		}
		month=parseInt(strMonth)
		day=parseInt(strDay)
		year=parseInt(strYr)
		if (pos1==-1 || pos2==-1){
			//alert("The date format should be : mm/dd/yyyy")
			return false
		}
		if (strMonth.length<1 || month<1 || month>12){
			//alert("Please enter a valid month")
			return false
		}
		if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
			//alert("Please enter a valid day")
			return false
		}
		if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
			alert("Please enter a valid 4 digit year between "+minYear+" and "+maxYear)
			return false
		}
		if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
			//alert("Please enter a valid date")
			return false
		}
	return true
	}