// JavaScript Document

function acceptNum(evt){	
	var key;
	if(window.event) // IE
	{ key = evt.keyCode; }
	else if(evt.which) // Netscape/Firefox/Opera
	{ key = evt.which;}
	return (key <= 13 || (key >= 48 && key <= 57));	
}

function alpha(e) {
var k;
document.all ? k = e.keyCode : k = e.which;
	return ((k > 64 && k < 91) || (k > 96 && k < 123) || k == 8 || k == 32 || k == 9 || k == 0 || k == 241 || k == 209 	|| k == 225 || k == 233 || k == 237 || k == 243 || k == 250 || k == 241 || k == 193 || k == 201 || k == 211 || k == 218 || k == 205 );
}
function sinHMTL(e) {
var k;
document.all ? k = e.keyCode : k = e.which;
	return (k != 60 && k != 62 );
}