function limitText(limitField, limitNum,e) 
			{			
				var keycode;
				if (window.event) keycode = window.event.keyCode;
				else if (e) keycode = e.which;
				//alert("keycode: [" + keycode + "]");
				
				if (keycode!=8)	
				{
					if(limitField.value.length >limitNum - 1)
					{
					//	alert('limit length');
						return false;
					}
					else
					{ 
						return true;
					} 
				}
				else
				{
					return true;
				}
			}

			function preventPaste(limitField,limitNum)
			{
				var CanInsertLength; 
				var sData = window.clipboardData.getData("Text");
				var newData ; 
				CanInsertLength = limitNum - limitField.value.length ; 
				if(CanInsertLength <= 0)
				{
					//alert('limit length1');
					return false;
				}
				else
				{
					newData = sData.substr(0,CanInsertLength);
					window.clipboardData.setData("Text",newData);
					return true; 
				} 
			}