function isNumeric(e)
{
	var keynum = null;
	if(window.event)
	{
		keynum = e.keyCode;
	}
	else if(e.which)
	{
		keynum = e.which;
	}
	if(keynum)
	{


		if( ((keynum >=48) && (keynum<=57)) ||((keynum >=96) && (keynum<=105)) || (keynum == 37) || (keynum == 39) || (keynum == 46) || (keynum == 8) )
		{
			
			return true;
		}
		else
		{
			return false;
		}
	}
}