// JavaScript (register form validation)
function reg_validation()
	{
		submitregistration();
		if( err=="")
		{
		return true;	 
		}
		else
		{	alert(err);
			return false;
		}		
		
	}


function submitregistration() 
{
	var form = document.register_sc;
	err="";
	/******username validation*******/
		if (form.chk_username.value == 1) 
		{	err="Please Enter a Valid Username and Click Check Avaliability." ;
			form.username.focus();	
			
		}
		
	/********password validation********/	
	   if (form.my_pwd.value == "") {
		 
			err = err +"\n" ;
			err =  err + "Please Enter Password" ;
			
		 }
		 if (form.my_pwd.value!="")
		 {
			str = form.my_pwd.value;
			var trimmed = str.replace(/^\s+|\s+$/g, ' ') ;
			if(trimmed == " ") 
			{	err = err+"\n" ;
				err = err +  "Please Enter Your password" ;
				form.my_pwd.value = "";
				form.my_pwd.focus();
			}
			else  
			{
				var un ;
				un = 0 ;
				for(i=0 ; i<str.length ; i++)
				{	
					var c1 = str.charAt(i);
					var hh = c1.charCodeAt(0);
					if((hh > 47 && hh<59) || (hh > 64 && hh<91) || (hh > 96 && hh<123))
					{
					}
					else
					{	un = un+1;
					}
				}
			
				if (un > 0) 
				{
					err = err + "\n" ;
					err = err + "Make sure password doesn't contain blank spaces or special character ";
					form.my_pwd.value = "";
					form.my_pwd.focus();	
				}
				else if (form.my_pwd.value.length < 6) 
				{
					err = err +"\n" ;
					err= err + "Please Enter a Valid Password. No Spaces, More Than 6 Characters And Should Contain 0-9,a-z,A-Z" ;
				}  
			}
		}
		
		
		/********confirm password validation********/	
		
		 if (form.my_cpwd.value == "") {
			err = err +"\n" ;
			err = err + "Please Confirm Password" ;
		 } 
		/********matching password and confirm password validation********/	
		 else if ((form.my_pwd.value != "") && (form.my_pwd.value != form.my_cpwd.value)){
		 
		 err = err +"\n" ;
		 err = err+ "Value Of Password And Confirm Password Are Different" ;
		
		} 
		
		/********phone no. validation********/	
		if(form.my_contact.value==""){
		err = err +"\n" ;
		err = err + "Please enter your Contact Number" ;
		}
		else if (form.my_contact.value !=""){
			
		s = form.my_contact.value ;
		var t ;
		t = 0 ;
				
		for(i=0 ; i<s.length ; i++)
		{
			var c = s.charAt(i);
			if((c <'0' || c>'9' ))
			{	if(c == '-' || c == '+')
					t = t - 1;	
				t = t + 1 ;
			}

		}
		
			if (t > 0) 
			{
				err = err + "\n" ;
				err = err + "Please Enter a Numeric Contact Number";
			}	
		}
		
	/********first name validation********/	
		if (form.my_name.value!=""){
		str = form.my_name.value;
		var trimmed = str.replace(/^\s+|\s+$/g, ' ') ;
		if(trimmed == " ")
			{	err = err+"\n" ;
				err = err +  "Please Enter Your Name" ;
				form.my_name.value="";
				form.my_name.focus();
			}
		else  
			{
				var un ;
				un = 0 ;
				for(i=0 ; i<str.length ; i++)
				{	
					var c1 = str.charAt(i);
					var hh = c1.charCodeAt(0);
					if((hh > 64 && hh<91) || (hh > 96 && hh<123) || c1 == " ")
					{
					}
					else
					{	un = un+1;
					}
				}
			
				if (un > 0) 
				{
					err = err + "\n" ;
					err = err + "Name should contain only alphabets ";
					form.my_name.value = "";
					form.my_name.focus();	
				}
			}
		
		}
				
		/***********address validation************/
		
		if (form.my_address.value !=""){
		add1 = form.my_address.value ;
		var trimmed = add1.replace(/^\s+|\s+$/g, ' ') ;
		if(trimmed == " ")
			{	err = err+"\n" ;
				err = err +  "Please Enter Your Address" ;
				form.my_address.value="";
				form.my_address.focus();
			}	
		else
			{
			var a1 ;
			a1 = 0 ;
			for(i=0 ; i<add1.length ; i++)
				{	
					var c1 = add1.charAt(i);
					var hh = c1.charCodeAt(0);
					if((hh > 64 && hh<91) || (hh > 96 && hh<123) || (hh > 47 && hh<59) || c1 == '-' || c1 == " ")
					{
					}
					else
					{
						a1 = a1 + 1 ;
					}
				}
			
			if (a1 > 0) 
				{
					err = err + "\n" ;
					err = err + "Address should contain only alphabets, numbers or '-' ";
				}	
			}
		}
		
		/********city validation********/	
		
		if (form.my_city.value!=""){
		str = form.my_city.value;
		var trimmed = str.replace(/^\s+|\s+$/g, ' ') ;
		if(trimmed == " ")
			{	err = err+"\n" ;
				err = err +  "Please Enter Your City" ;
				form.my_city.value="";
				form.my_city.focus();
			}
		else
			{
			var a2 ;
			a2 = 0 ;
			for(i=0 ; i<str.length ; i++)
				{
					var c1 = str.charAt(i);
					var hh = c1.charCodeAt(0);
					if((hh > 64 && hh<91) || (hh > 96 && hh<123) || c1 == " ")
					{
					}
					else
					{
						a2 = a2 + 1 ;
					}
		
				}
			
			if (a2 > 0) 
				{
					err = err + "\n" ;
					err = err + "City should contain only alphabets";
				}	
			}
		
		}
		
		/********city validation********/	
		if (form.my_state.value!=""){
		str = form.my_state.value;
		var trimmed = str.replace(/^\s+|\s+$/g, ' ') ;
		if(trimmed == " ")
		{	err = err+"\n" ;
			err = err +  "Please Enter Your State" ;
			form.my_state.value="";
			form.my_state.focus();
		}
		else
			{
			var a2 ;
			a2 = 0 ;
			for(i=0 ; i<str.length ; i++)
				{
					var c1 = str.charAt(i);
					var hh = c1.charCodeAt(0);
					if((hh > 64 && hh<91) || (hh > 96 && hh<123) || c1 == " ")
					{
					}
					else
					{
						a2 = a2 + 1 ;
					}
		
				}
			
			if (a2 > 0) 
				{
					err = err + "\n" ;
					err = err + "State should contain only alphabets";
				}	
			}
		}
		
		/********zip code validation********/	
		
		if (form.my_postal_code.value!=""){
		str = form.my_postal_code.value;
		var trimmed = str.replace(/^\s+|\s+$/g, ' ') ;
		if(trimmed == " ")
		{	err = err+"\n" ;
			err = err +  "Please Enter Your Postel/Zip/Pin Code" ;
			form.my_postal_code.value="";
			form.my_postal_code.focus();
		}
		else
			{
			var a2 ;
			a2 = 0 ;
			for(i=0 ; i<str.length ; i++)
				{
					var c1 = str.charAt(i);
					var hh = c1.charCodeAt(0);
					if((hh > 64 && hh<91) || (hh > 96 && hh<123) || (hh > 47 && hh<59) || c1 == " " )
					{
					}
					else
					{
						a2 = a2 + 1 ;
					}
		
				}
			
			if (a2 > 0) 
				{
					err = err + "\n" ;
					err = err + "Postel code should contain only alphabets and numbers";
				}	
			}
		}
				
	
	/********terms and conditions validation********/	   	
	/*if(form.terms.checked ==false)
	{
	err = err +"\n" ;
	err = err + "Please Agree To The Terms Of Service By Selecting The Checkbox" ;
	}*/

	/********email validation********/	
		 if (form.email.value == "") {

		err = err +"\n" ;
		err = err+ "Please Enter Email Address" ;
	   
	  
		}else{
		emailStr=form.email.value;
		var checkTLD=1;
		var knownDomsPat=/^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum)$/;
		var emailPat=/^(.+)@(.+)$/;
		var specialChars="\\(\\)><@,;:\\\\\\\"\\.\\[\\]";
		var validChars="\[^\\s" + specialChars + "\]";
		var quotedUser="(\"[^\"]*\")";
		var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/;
		var atom=validChars + '+';
		var word="(" + atom + "|" + quotedUser + ")";
		var userPat=new RegExp("^" + word + "(\\." + word + ")*$");
		var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$");
		var matchArray=emailStr.match(emailPat);

		if (matchArray==null) {
			err=err+"\n";
			err=err+"Email address seems incorrect (check @ and .'s)";
			return false;
		}
		var user=matchArray[1];
		var domain=matchArray[2];

		for (i=0; i<user.length; i++) {
			if (user.charCodeAt(i)>127) {
				err=err+"\n";
				err=err+"Ths email name contains invalid characters";
				return false;
			   }
			}
		for (i=0; i<domain.length; i++) {
				if (domain.charCodeAt(i)>127) {
					err=err+"\n";
					err=err+"This domain name of email contains invalid characters.";
					return false;
			   }
			}
		
		if (user.match(userPat)==null) {
			err=err+"\n";
			err=err+"The email name doesn't seem to be valid";
			return false;
		}
		
		var IPArray=domain.match(ipDomainPat);
		if (IPArray!=null) {
		
			// this is an IP address
			
			for (var i=1;i<=4;i++) {
				if (IPArray[i]>255) {
					err=err+"\n";
					err=err+"Destination IP address of this email is invalid!";
					return false;
				   }
			}
			//return true;
		}

		var atomPat=new RegExp("^" + atom + "$");
		var domArr=domain.split(".");
		var len=domArr.length;
		for (i=0;i<len;i++) {
			if (domArr[i].search(atomPat)==-1) {
				err=err+"\n";
				err=err+"The domain name of this email does not seem to be valid.";
				return false;
			   }
		}
		if (checkTLD && domArr[domArr.length-1].length!=2 && domArr[domArr.length-1].search(knownDomsPat)==-1) 
		{	err=err+"\n";
			err=err+"The email address must end in a well-known domain or two letter " + "country.";
			return false;
		}
		
		if (len<2) {
			
			err=err+"\n";
			err=err+"This email address is missing a hostname!";
			return false;
		}


		}
	
	if(err !="")
	{return false;}else
	{return true;}	
}