function layerSetup(id,visibility){
	if(document.getElementById){
		this.obj = document.getElementById(id).style;
		this.obj.visibility = visibility;
		return this.obj;
	}
	else if(document.all){
		this.obj = document.all[id].style;
		this.obj.visibility = visibility;
		return this.obj;
	}
	else if(document.layers){
		this.obj = document.layers[id];
		this.obj.visibility = visibility;
		return this.obj;
	}
}

function visVisible(param){
	new layerSetup(param,'visible');
}
function visHidden(param){
	new layerSetup(param,'hidden');
}
function isempty(inputname,message)
{
     var empty = false;
     if(Trim(document.getElementById(inputname).value) == "") 
     {
         alert(message);
        document.getElementById(inputname).focus();
        return empty;
     }
     else empty = true;
     return empty;   
}

function isemptyr(inputname)
{
     var empty = false;
     if(Trim(document.getElementById(inputname).value) == "") 
     {
        document.getElementById(inputname).focus();
        return empty;
     }
     else empty = true;
     return empty;   
}

function makeempty(inputname)
{
    document.getElementById(inputname).value = "";
}

function hide(id)
{
    document.getElementById(id).style.display="none";
}
function show(id)
{
    document.getElementById(id).style.display="block";
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function IsvalidEmail(mailid) 
{		
        var str=mailid
		var flag=true;
		var at="@";
		var dot=".";
		var lat=str.indexOf(at)
		var lstr=str.length
		var ldot=str.indexOf(dot)
		
		if (str.indexOf(at)==-1)
		{
			flag=false;
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr)
			flag=false;
		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr)
			flag=false;
		if (str.indexOf(at,(lat+1))!=-1)
			flag=false;
		if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot)
			flag=false;
		if (str.indexOf(dot,(lat+2))==-1)
			flag=false;
		if (str.indexOf(" ")!=-1)
			flag=false;
		 if(flag)
 			return true;
 		 else
 		 return false;
		 		 
}

function Trim(s) 
{
  // Remove leading spaces and carriage returns
  while ((s.substring(0,1) == ' ') || (s.substring(0,1) == '\n') || (s.substring(0,1) == '\r'))
  {
    s = s.substring(1,s.length);
  }

  // Remove trailing spaces and carriage returns

  while ((s.substring(s.length-1,s.length) == ' ') || (s.substring(s.length-1,s.length) == '\n') || (s.substring(s.length-1,s.length) == '\r'))
  {
    s = s.substring(0,s.length-1);
  }
  return s;
}

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 validateform(evt)
{
	if (evt.keyCode == 13)
	{
		submitform();
	}
}

function formvalidate(array_fields,array_message)
{
	var alertfields="";
	var setfocus="";
	var i;
	for(i = 0; i < array_fields.length; i++)
	{
		if(Trim(document.getElementById(array_fields[i]).value) == "")
		{
			alertfields+="- " + array_message[i] + "\n";
			if (setfocus=="")
			{
				 setfocus=array_fields[i];
			}
		}		
	}
	if (alertfields!="")
	{
		alert("The following field(s) cannot be left blank:\n\n"+alertfields+"\nPlease fill these fields.");
		document.getElementById(setfocus).focus();
		return false;		
	}
	
	return true;
}

function AllowOnlyNumeric(e)
{
    // Get the ASCII value of the key that the user entered
	var key;
	//alert(navigator.appName);
	if(navigator.appName == "Microsoft Internet Explorer")
	    key = e.keyCode;
	else if(navigator.appName == "Netscape")
	    key = e.which;
   // var key = window.event.keyCode;
	//alert(key);
    // Verify if the key entered was a numeric character (0-9) or a decimal (.)
   if ( (key > 47 && key < 58) || key == 45 || key == 8 || key == 0  )
        // If it was, then allow the entry to continue
        return ;
    else
    {
        // If it was not, then dispose the key and continue with entry
        if(navigator.appName == "Microsoft Internet Explorer")
            window.event.returnValue = false;
	    else if(navigator.appName == "Netscape")
            e.preventDefault();
    }
}
// JScript File
function AllowOnlynumericdot(e)
{
    var key;
    if(navigator.appName == "Microsoft Internet Explorer")
	    key = e.keyCode;
	else if(navigator.appName == "Netscape")
	    key = e.which;
	if ( (key > 47 && key < 58) || key == 8 || key == 0 || key == 46 )
	     return ;
    else
    {
        if(navigator.appName == "Microsoft Internet Explorer")
            window.event.returnValue = false;
	    else if(navigator.appName == "Netscape")
            e.preventDefault();
    }
}

function Allowcharacterspecial(e)
{
    if(navigator.appName=="Microsoft Internet Explorer")
        key = e.keycode;
    else if(navigator.appName == "Netscape")
        key = e.which;
    if((key>=97 && key<=122)||(key>=65 &&key<=90)|| key==32||key==0||key==8)
        return
    else
    {
        if(navigator.appName == "Microsoft Internet Explorer")
            window.event.returnValue = false;
        else if(navigator.appName == "Netscape")
            e.preventDefault();
     }
}
function disallowsingle(e)
{
    if(navigator.appName=="Microsoft Internet Explorer")
        key = e.keycode;
    else if(navigator.appName == "Netscape")
        key = e.which;
      
    if(key == 39)
    {
        if(navigator.appName == "Microsoft Internet Explorer")
            window.event.returnValue = false;
        else if(navigator.appName == "Netscape")
            e.preventDefault();
     }
}



/**
 * 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
}

function ValidateForm(){
	var dt=document.frmSample.txtDate
	if (isDate(dt.value)==false){
		dt.focus()
		return false
	}
    return true
 }

function revalue(input)
{
    return document.getElementById(input).value;
}