// JavaScript Document
var cnter = 0;
var cnter2 = 0;
function onKeyPressBlockNumbers(e)
{
	
	if(cnter2 >3)
		{
		alert('Alphabets only please!');
		cnter2 = 0;
		}
	var key = window.event ? e.keyCode : e.which;
	var keychar = String.fromCharCode(key);
	reg = /\d/;
	if(!reg.test(keychar))
		{
		return !reg.test(keychar);
		}
	else
		{	
		cnter2++;	
		return !reg.test(keychar);
		}
}

function numbersonly(myfield, e, dec)
{
var key;
var keychar;
if(cnter >3)
	{
	alert('Numbers Only Please!');
	cnter=0;
	}

if (window.event)
   key = window.event.keyCode;
else if (e)
   key = e.which;
else
   return true;
keychar = String.fromCharCode(key);

// control keys
if ((key==null) || (key==0) || (key==8) || 
    (key==9) || (key==13) || (key==27) )
   return true;

// numbers
else if ((("0123456789").indexOf(keychar) > -1))
   return true;

// decimal point jump
else if (dec && (keychar == "."))
   {
   myfield.form.elements[dec].focus();
   cnter++;
   return false;
   }
else
	{
	cnter++;	
    return false;
	}
}


function limitbackspace(charfield)
	{
	//var charfield=document.getElementById(inputid)
	mystr = charfield.InnerHTML;
	charfield.onkeydown=function(e){
	var e=window.event || e
		if(e.keyCode == 8)
			{
			alert('backspace');	
			}
		}
	}

function limitbackspaceontextarea(charfield, maxchar, txtname)
	{
	//var charfield=document.getElementById(inputid)
	mystr = document.getElementById(txtname).innerHTML;
	mystr2 = charfield.value;
	charfield.onkeydown=function(e){
	var e=window.event || e
		if(e.keyCode == 8 || e.keyCode == 46)
			{
			alert(e.keyCode);	
			alert(mystr2);
		//	return false;
			}
		}
	}