function checkfield(loginform)
{
if (loginform.fullname.value=="")
			{
				alert("Please Enter Name");
				loginform.fullname.focus();
				return false;		
			}	


	ok=true
	if(loginform.email.value=="")
	{
		alert("Please enter e-mail address.")
		loginform.email.focus()
		ok=false
	}
	else
	{
		var mail=loginform.email.value
		
		at_pos=mail.indexOf("@")
		dot_pos=mail.indexOf(".")
		
		if(at_pos<1 || dot_pos<1)
		{
			alert("Please check position of '@' and '.' in email address.")
			loginform.email.focus()
			ok=false
		}
		else
		{
			var condition=""
			var pos=0
			var mail=loginform.confirmemail.value
		 	if (mail.lenght==0) {
				loginform.confirmemail.focus()
				OK=false
			}
			
			condition="yes"
			var at_count=0
			var dot_count=0
			var temp=0
			for(var i=0;i<mail.length;i++)
			{
				if((mail.charCodeAt(i)>95 && mail.charCodeAt(i)<97)||(mail.charCodeAt(i)>45 && mail.charCodeAt(i)<48) || (mail.charCodeAt(i)>0 && mail.charCodeAt(i)<45)||(mail.charCodeAt(i)>57 && mail.charCodeAt(i)<65)||(mail.charCodeAt(i)>91 && mail.charCodeAt(i)<95)||mail.charCodeAt(i)>122)
				{
					if(mail.charAt(i)=="@"||mail.charAt(i)==".")
					{
							if(mail.charAt(i)=="@"){at_count++}else{dot_count++} // counts the no. of times @ and . appears in email
							if(dot_count>=1)
							{
								dot_pos=i
								if((dot_pos>at_pos) && temp==0)
								{
									pos=dot_pos-at_pos
									temp++
								}								
							}
					}
					else
					{
						condition="no"
						i=mail.length
					}
				}
			}
			}
			if(condition=="no")
			{
				alert("Your email contains a blank space or special character.")
				loginform.email.focus()
				ok=false
			}
			else
			{
				if(at_count>1)
				{
					alert("Your E-mail contains extra @ ")
					loginform.email.focus()
					ok=false
				}
				else
				{
					if(pos<2)
					{
						alert("Missing domain name between '@' and '.'")
						loginform.email.focus()
						ok=false
						i=mail.length
					}
					else
					{	
						count=dot_pos+1
						domain=""
						for(count;count<mail.length;count++)
						{
							domain=domain+mail.charAt(count)		
						}
						dom=new Array("au","com","ws","net","org","edu","in","mil","gov","arpa","biz","aero","name","coop","info","pro","museum")
						error="yes"
						for(var k=0;k<dom.length;k++)
						{
							if(domain==dom[k])
							{
								k=dom.length
								error="no"
							}
						}
						if((error=="yes" && (domain.length>2)) || (domain.length<2))
						{
							alert("Domain name must end with well known domains \n or 2-lettered country name. eg com,edu,com.kh in etc.")
							loginform.email.focus()
							ok=false
						}								
					}
				}
			}
		}


	if (loginform.email.value!=loginform.confirmemail.value)
			{
				alert("Your Email not Match !");
				loginform.confirmemail.focus();
				return false
			}	
	return ok
}


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