// JavaScript Document
 function validate(){
     str=document.niceform1;
     //alert(document.getElementById("avail").innerHTML);
         if(str.purpose.value==''){
          alert("Select purpose");
		  str.purpose.focus();
		  return false;
	 }

	 else if(str.name.value==''){
          alert("Enter your full name");
		  str.name.focus();
		  return false;
	 }

	  else if(str.institute.value==''){
          alert("Enter Institute Name");
		  str.institute.focus();
		  return false;
	 }
	  else if(str.website.value==''){
          alert("Enter WebSite Name");
		  str.website.focus();
		  return false;
	 }
	  else if(str.email.value==''){
          alert("Enter Email address");
		  str.email.focus();
		  return false;
	 }
	 else if(str.phone.value==''){
          alert("Enter phone number");
		  str.phone.focus();
		  return false;
	 }
		 else if(str.phone.value==''){
          alert("Enter phone number");
		  str.phone.focus();
		  return false;
	 }
	 else 
	 {
	   
	  
	  if(str.website.value!=''){
	   if(!checkDomain(str.website.value)){
          //alert("Enter correct Website Name");
		  str.website.focus();
		  return false;
		}  
	 }
	  if(str.email.value!=''){
	   if(!isEmail(str.email.value)){
          alert("Enter correct Email Address");
		  str.email.focus();
		  return false;
		}  
	 }
	 } 
	
	 str.submit(); 
   }
   function isEmail(str){
		   var regex = /^[-_.a-z0-9]+@(([-_a-z0-9]+\.)+(ad|ae|aero|af|ag|ai|al|am|an|ao|aq|ar|arpa|as|at|au|aw|az|ba|bb|bd|be|bf|bg|bh|bi|biz|bj|bm|bn|bo|br|bs|bt|bv|bw|by|bz|ca|cc|cd|cf|cg|ch|ci|ck|cl|cm|cn|co|com|coop|cr|cs|cu|cv|cx|cy|cz|de|dj|dk|dm|do|dz|ec|edu|ee|eg|eh|er|es|et|eu|fi|fj|fk|fm|fo|fr|ga|gb|gd|ge|gf|gh|gi|gl|gm|gn|gov|gp|gq|gr|gs|gt|gu|gw|gy|hk|hm|hn|hr|ht|hu|id|ie|il|in|info|int|io|iq|ir|is|it|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|mil|mk|ml|mm|mn|mo|mp|mq|mr|ms|mt|mu|museum|mv|mw|mx|my|mz|na|name|nc|ne|net|nf|ng|ni|nl|no|np|nr|nt|nu|nz|om|org|pa|pe|pf|pg|ph|pk|pl|pm|pn|pr|pro|ps|pt|pw|py|qa|re|ro|ru|rw|sa|sb|sc|sd|se|sg|sh|si|sj|sk|sl|sm|sn|so|sr|st|su|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|wf|ws|ye|yt|yu|za|zm|zw)|(([0-9][0-9]?|[0-1][0-9][0-9]|[2][0-4][0-9]|[2][5][0-5])\.){3}([0-9][0-9]?|[0-1][0-9][0-9]|[2][0-4][0-9]|[2][5][0-5]))$/i;
		return regex.test(str);
		}
   function IsNumeric(sText)

{
   var ValidChars = "0123456789.";
   var IsNumber=true;
   var Char;

 
   for (i = 0; i < sText.length && IsNumber == true; i++) 
      { 
      Char = sText.charAt(i); 
      if (ValidChars.indexOf(Char) == -1) 
         {
         IsNumber = false;
         }
      }
   return IsNumber;
   
   }
   
   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;

var dot = mai.lastIndexOf(".");
var dname = mai.substring(0,dot);
var ext = mai.substring(dot,mai.length);
//alert(ext);
	
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)
	{
	  	 alert("Your domain extension "+ext+" is not correct");
		 return false;
	}
	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)	
		  	 {
		 	  	 alert("Domain name should not begin are end with '-'");
			      return false;
		 	 }
		  }
		else	{
		  	 alert("Your domain name should not have special characters");
			 return false;
		  }
		}
	}
}
else
{
 alert("Your Domain name is too short/long");
 return false;
}	

return true;
}