// Numeric Field:
// --------------
//
// onKeyPress="return keyRestrict(event,'1234567890')"
//
// Date Field:
// -----------
// onKeyUp="javascript:return mask(this.value,this,'2,5,10,13,16','/,/, ,:,:');" 
// onBlur="javascript:return mask(this.value,this,'2,5,10,13,16','/,/, ,:,:');"
//
//
// Money Field:
// ------------
// onChange="javascript:FormatAmtControl(this)"
// onKeyPress="return HandleAmountFiltering(this);" 
//
function getKeyCode(e)// v1.0
{
   if (window.event)
      return window.event.keyCode;
   else if (e)
      return e.which;
   else
      return null;
}

function keyRestrict(e, validchars) 
{
   var key='', keychar='';
   key = getKeyCode(e);
   if (key == null) return true;

   keychar = String.fromCharCode(key);
   keychar = keychar.toLowerCase();
   validchars = validchars.toLowerCase();
   if (validchars.indexOf(keychar) != -1)
      return true;
   if ( key==null || key==0 || key==8 || key==9 || key==13 || key==27 )
      return true;
   return false;
}

function mask(str,textbox,loc,delim)
{
   var locs = loc.split(',');
   var delims = delim.split(',');
   for (var i = 0; i <= locs.length; i++)
   {
      for (var k = 0; k <= str.length; k++)
      {
         if (k == locs[i])
         {
            if (str.substring(k, k+1) != delims[i])
            {
               str = str.substring(0,k) + delims[i] + str.substring(k,str.length)
            break;
            }
 
         }
      }
   }
   textbox.value = str
}


var theform;
var isIE;
var isNS;

/*
Function to detect the Browser type.
*/
function detectBrowser()
{
	if (window.navigator.appName.toLowerCase().indexOf("netscape") > -1) 
		theform = document.forms["Form1"];
	else 
		theform = document.Form1;
		
	//browser detection
	var strUserAgent = navigator.userAgent.toLowerCase();
	isIE = strUserAgent.indexOf("msie") > -1;
	isNS = strUserAgent.indexOf("netscape") > -1;
	
}

/*
This function will fire when the control leaves the Text Box.
The function is responsible for formating the numbers to amount type.
*/
function FormatAmtControl(ctl){
	var vMask ;
	var vDecimalAfterPeriod ;
	var ctlVal;
	var iPeriodPos;
	var sTemp;
	var iMaxLen 
	var ctlVal;
	var tempVal;
	ctlVal = ctl.value;
	vDecimalAfterPeriod  = 2
	iMaxLen  = ctl.maxLength;

	if (isNaN(ctlVal))
	{
		// clear the control as this is not a num
		ctl.value=""
	}
	else{
		ctlVal =  ctl.value;
		iPeriodPos =ctlVal.indexOf(".");
		if (iPeriodPos<0)
		{
			if (ctl.value.length > (iMaxLen-3))
			{
				sTemp = ctl.value
				 tempVal = sTemp.substr(0,(iMaxLen-3)) + ".00";
			}
			else
			tempVal = ctlVal + ".00"
		}
		else{
			if ((ctlVal.length - iPeriodPos -1)==1)
				tempVal = ctlVal + "0"
			if ((ctlVal.length - iPeriodPos -1)==0)
				tempVal = ctlVal + "00"
			if ((ctlVal.length - iPeriodPos -1)==2)
				tempVal = ctlVal;
			if ((ctlVal.length - iPeriodPos -1)>2){
				tempVal = ctlVal.substring(0,iPeriodPos+3);
			}


		}
		ctl.value=tempVal;
	}
}

/*
This function is responsible for filtering the keys pressed and the maintain the amount format of the 
value in the Text box
*/
	function HandleAmountFiltering(ctl){
	var iKeyCode, objInput;
	var iMaxLen 
	var reValidChars = /[0-9.]/;
	var strKey;
	var sValue;
	var event = window.event || arguments.callee.caller.arguments[0];
	iMaxLen  = ctl.maxLength;
	sValue = ctl.value;
	detectBrowser();

	if (isIE) {
		iKeyCode = event.keyCode;
			objInput = event.srcElement;
	} else {
		iKeyCode = event.which;
		objInput = event.target;
	}

	strKey = String.fromCharCode(iKeyCode);

	if (reValidChars.test(strKey))
	{
		if(iKeyCode==46)
		{
			if(objInput.value.indexOf('.')!=-1)
				if (isIE)
					event.keyCode= 0;
				 else
				 {
				 	 if(event.which!=0 && event.which!=8)
					return false;
				 }
		}
		else
		{
			if(objInput.value.indexOf('.')==-1)
			{
				
				if (objInput.value.length>=(iMaxLen-3))
				{
					if (isIE)
						event.keyCode= 0;
					 else
					 {
					 	 if(event.which!=0 && event.which!=8)
						return false;
					 }
	
				}
			}
			if ((objInput.value.length==(iMaxLen-3)) && (objInput.value.indexOf('.')==-1))
			{
				objInput.value = objInput.value +'.';
			
			}

	
		}

	}
	else{
		if (isIE)
			event.keyCode= 0;
		 else
		 {
		 	 if(event.which!=0 && event.which!=8)
			 return false;
		 }
	}
}

function doClick(buttonName, e) {
    //the purpose of this function is to allow the enter key to 
    //point to the correct button to click.
    var key;

    if (window.event)
        key = window.event.keyCode;     //IE
    else
        key = e.which;     //firefox

    if (key == 13) {
        //Get the button the user wants to have clicked
        var btn = document.getElementById(buttonName);
        if (btn != null) { //If we find the button click it
            btn.click();
            event.keyCode = 0
        }
    }
}