function isUrl(s)
{
	var regexp = /(http|https):\/\/(\w+:{0,1}\w*@)?(\S+)(:[0-9]+)?(\/|\/([\w#!:.?+=&%@!\-\/]))?/
	return regexp.test(s);
};

function checkDomain(nname)
{
	var arr = new Array(
		'.com','.net','.org','.biz','.coop','.info','.museum','.name',
		'.pro','.edu','.gov','.int','.mil','.ac','.ad','.ae','.af','.ag',
		'.ai','.al','.am','.an','.ao','.aq','.ar','.as','.at','.au','.aw',
		'.az','.ba','.bb','.bd','.be','.bf','.bg','.bh','.bi','.bj','.bm',
		'.bn','.bo','.br','.bs','.bt','.bv','.bw','.by','.bz','.ca','.cc',
		'.cd','.cf','.cg','.ch','.ci','.ck','.cl','.cm','.cn','.co','.cr',
		'.cu','.cv','.cx','.cy','.cz','.de','.dj','.dk','.dm','.do','.dz',
		'.ec','.ee','.eg','.eh','.er','.es','.et','.fi','.fj','.fk','.fm',
		'.fo','.fr','.ga','.gd','.ge','.gf','.gg','.gh','.gi','.gl','.gm',
		'.gn','.gp','.gq','.gr','.gs','.gt','.gu','.gv','.gy','.hk','.hm',
		'.hn','.hr','.ht','.hu','.id','.ie','.il','.im','.in','.io','.iq',
		'.ir','.is','.it','.je','.jm','.jo','.jp','.ke','.kg','.kh','.ki',
		'.km','.kn','.kp','.kr','.kw','.ky','.kz','.la','.lb','.lc','.li',
		'.lk','.lr','.ls','.lt','.lu','.lv','.ly','.ma','.mc','.md','.mg',
		'.mh','.mk','.ml','.mm','.mn','.mo','.mp','.mq','.mr','.ms','.mt',
		'.mu','.mv','.mw','.mx','.my','.mz','.na','.nc','.ne','.nf','.ng',
		'.ni','.nl','.no','.np','.nr','.nu','.nz','.om','.pa','.pe','.pf',
		'.pg','.ph','.pk','.pl','.pm','.pn','.pr','.ps','.pt','.pw','.py',
		'.qa','.re','.ro','.rw','.ru','.sa','.sb','.sc','.sd','.se','.sg',
		'.sh','.si','.sj','.sk','.sl','.sm','.sn','.so','.sr','.st','.sv',
		'.sy','.sz','.tc','.td','.tf','.tg','.th','.tj','.tk','.tm','.tn',
		'.to','.tp','.tr','.tt','.tv','.tw','.tz','.ua','.ug','.uk','.um',
		'.us','.uy','.uz','.va','.vc','.ve','.vg','.vi','.vn','.vu','.ws',
		'.wf','.ye','.yt','.yu','.za','.zm','.zw');

	var mai = nname;
	var val = true;

	if (mai.lastIndexOf(".") == -1) mai = mai;

	var dot = mai.lastIndexOf(".");

	var dname = mai.substring(0,dot);

	var ext = mai.substring(dot,mai.length);

	if(dot>2 && dot<57)
	{
		for(var i=0; i<arr.length; i++)
		{
			if(ext == arr[i])
			{
				val = true;
				break;
			}
			else
			{
				val = false;
			}
		}
		if(val == false)
		{
			return ("Your domain extension "+ext+" is not correct");
		}
		else
		{
			for(var j = 0; j < dname.length; j++)
			{
				var dh = dname.charAt(j);
				var hh = dh.charCodeAt(0);
				if((hh > 47 && hh<59) || (hh > 64 && hh<91) || (hh > 96 && hh<123) || hh==45 || hh==46)
				{
					if((j==0 || j==dname.length-1) && hh == 45)
					{
						return ("Domain name should not begin are end with '-'");
					}
				}
				else	{
					return ("Your domain name should not have special characters");
				}
			}
		}
	}
	else
	{
		return ("Invalid domain name");
	}

	return 'true';
}