function chkDataEngNumNoSpace(obj_name, str) {
	var aBigCode="A".charCodeAt(0);
	var zBigCode="Z".charCodeAt(0);
	var aCode = "a".charCodeAt(0);
	var zCode = "z".charCodeAt(0);
	var Num0 = "0".charCodeAt(0);
	var Num9 = "9".charCodeAt(0);
	var f = eval("document.form." + obj_name + ".value;");
	var ff = eval("document.form." + obj_name + ";");
	b = f.length-1;
	if (b < 0) {return false;}
	if (((f.charCodeAt(b) >= aCode) && (f.charCodeAt(b) <= zCode))|| ((f.charCodeAt(b)>=aBigCode)&&(f.charCodeAt(b)<=zBigCode)) || ((f.charCodeAt(b) >= Num0) && (f.charCodeAt(b) <= Num9)))
	{
	}
	else
	{
		if (f.charAt(b)==" ")
		{
			alert(str + " ห้ามมีช่องว่าง");
			ff.value = '';
		}		
		else
		{
			alert(str + " ต้องเป็นตัวอักษร a - z, A - Z, 0 - 9");			
			ff.value = '';
		}
	}
}

function chkNumNoSpace(obj_name, str) {
	var Num0 = "0".charCodeAt(0);
	var Num9 = "9".charCodeAt(0);
	var f = eval("document.form." + obj_name + ".value;");
	var ff = eval("document.form." + obj_name + ";");
	b = f.length-1;
	if (b < 0) {return false;}
	if ((f.charCodeAt(b) >= Num0) && (f.charCodeAt(b) <= Num9))
	{
	}
	else
	{
		if (f.charAt(b)==" ")
		{
			alert(str + " ห้ามมีช่องว่าง");
			ff.value = '';
		}		
		else
		{
			alert(str + " ต้องเป็นตัวเลข 0 - 9");			
			ff.value = '';
		}
	}
}