function dovalid()
{
frm=eval("document.advertiser");
email=eval("frm.emailadd");
password=eval("frm.password");
flag=true;
errmsg="";
		if(email)
		{
			 if (isWhitespace(email.value))
			{
				errmsg=errmsg+"Email Address Should Not Be Blank. \n"
				flag=false;
			}
			else 
			{
				if (isValidEmail(email.value)==false)
				{
					errmsg=errmsg+"E-mail Address Is Not Valid. \n"
					flag=false;			
				}

			}			
		}

		if(isWhitespace(password.value))
				{
				errmsg=errmsg+"Password Should Not Be Blank. \n"
				flag=false;
				}


		if(flag == false)
			{
			alert(errmsg);
			}
		else{
			 
			frm.action = "emplogin.php";
			frm.submit() 			
			}
return flag;
}

function dovalid1()
{
frm=eval("document.referafrnd");
username=eval("frm.username");
frndmailid=eval("frm.frndmailid");
flag=true;
errmsg="";
		if(username)
		{
			 if (isWhitespace(username.value))
			{
				errmsg=errmsg+"Email Address Should Not Be Blank. \n"
				flag=false;
			}
			else 
			{
				if (isValidEmail(username.value)==false)
				{
					errmsg=errmsg+"Email Address Is Not Valid. \n"
					flag=false;			
				}

			}			
		}

		if(frndmailid)
		{
			 if (isWhitespace(frndmailid.value))
			{
				errmsg=errmsg+"Friend's Email Address Should Not Be Blank. \n"
				flag=false;
			}
			else 
			{
				if (isValidEmail(frndmailid.value)==false)
				{
					errmsg=errmsg+"Friend's E-mail Address Is Not Valid. \n"
					flag=false;			
				}

				if (frndmailid.value==username.value)
				
				{
					errmsg=errmsg+"Your Email Address And Friend's E-mail Address Should Be Different. \n"
					flag=false;			
				}

			}			
		}

		
		if(flag == false)
			{
			alert(errmsg);
			}
		else{
			 
			frm.action = "advertisers.php?mode=refer";
			frm.submit() 			
			}
			return flag;
}