<script language="javascript" type="text/javascript">
function chkvalidate()
{
  var get_client_name=document.frm.client_name.value;
  var get_email_id=document.frm.email_id.value;
  var get_phone_no=document.frm.phone_no.value;
  var get_your_comment=document.frm.your_comment.value;
  var sd = get_email_id;
  var ids = sd.split("\n");
  var val = true;

  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');

  
  if(get_client_name=='')
  {alert('You have not entered data of Client\'s Name.\nEnter a valid data.');
   document.frm.client_name.focus();
   return(false);}
   
   
  if(get_email_id=='')
  {alert('You have not entered data of Email.\nEnter a valid data.');
   document.frm.email_id.focus();
   return(false);}  
  else
  {	for(var j=0; j<ids.length; j++)
	{
		var mai = ids[j];
		var dot = mai.lastIndexOf(".");
		var ext = mai.substring(dot,mai.length);
		var at = mai.indexOf("@");
		var dom = dot - at;
    	var sp = mai.indexOf(" ");
		if(dom >= 4 && at > 1 && sp == -1)
		{
			for(var i=0; i<arr.length; i++)
			{
				if(ext == arr[i])
				{val = true;break;}
				else
				{val = false;}
			}
			if(val == false)
			{alert("Your Email  ["+mai+"] is not correct.\nPlease check your Email.");
			 document.frm.email_id.focus();
			 return false;}
		}
		else
		{alert("Your Email ["+mai+"] is not correct.\nPlease check your Email.");
		 document.frm.email_id.focus();
	 	 return false;}
	} // end of for loop
  } // end of first else  
  
  
   
  if(get_phone_no=='')
  {alert('You have not entered data of Phone No.\nEnter a valid data.');
   document.frm.phone_no.focus();
   return(false);} 
  
  if(get_your_comment=='')
  {alert('You have not entered data of Comment of Interested In.\nEnter a valid data.');
   document.frm.your_comment.focus();
   return(false);} 
    
  return(true); 
}
</script>