function check_strip_tags (content, error){		
	var testText = $("#"+content).val();
	// was giving an error when there was no space after the semicolon
	// these two lines make sure there's exactly one space
	testText = testText.replace(/\;\s{0}/gi, "; ");
	testText = testText.replace(/\;\s+/gi, "; ");
	testText = testText.replace(/<(.|\n)*?>/gi,"");
	testText = testText.replace(/<|>|\%3E|\&gt;|\&lt;|\%3C/gi,"");
	var uberEx = new RegExp("(https?|ftps?|gopher|telnet|file|notes|ms-help):((//)|(\\\\))+([\w\d:#@%/;$()~_?\+-=\\\.&]*)|([\w\d:#%/;$()~_?\+-=\\\/&])+\.([\w\d:#%/;$()~_?\+-=\\\/&])+\.","gim");
	testText = testText.replace(uberEx,"");

	//var trimmedText = Left(testText, 5).trim();
	//$("#"+content).val(trimmedText);
	$("#"+content).val(testText);
	return true;

   
   
}

function Left(str, n)
{
   if (n <= 0)
         return "";
   else if (n > String(str).length)
         return str;
   else
         return String(str).substring(0,n);
}

function check_required (content, error){
	var errormessage = "<p>Required</p>";
		
	var errorbox = $("#"+content+"Error_"+error);
	var testText = $("#"+content).val();
	testText = testText.replace(/<(.|\n)*?>/gi,"");
	
	var trimmedText = testText.trim();
	if (trimmedText == "") {
		errorbox.css("visibility", "visible").html(errormessage);
		return false;
	} else {
		$("#"+content).val(testText);
		errorbox.css("visibility", "hidden").html("");
   		return true;
   }
   
   
}

function check_emails (content, error) {
	var errormessage = "<p>Contains Invalid Address</p>"
	var errorbox = $("#"+content+"Error_"+error);
	var testText = $("#"+content).val();
	
	var emailProblem = false;
	var emails = new Array;
		
	emails = testText.split(";");
	emails = emails.clean("");
	if (emails.length < 51) {	
	    for (var i in emails) {
		    var checkedEmail = emails[i];
		    if (typeof checkedEmail == "string") { 
			    checkedEmail = checkedEmail.trim();
			    if (checkedEmail != "") {
				    if (!validate_email(checkedEmail)) {
					    emailProblem = true;
				    }
			    }
		    }
	    }
	} else {
	    emailProblem = true;
	    errormessage = "<p>Too many email addresses</p>";
	}
	
	if (emailProblem) {
		errorbox.css("visibility", "visible").html(errormessage);		
	    return false;	
	} else {
	    errorbox.css("visibility", "hidden").html("");
	    return true
	}
	

}

function check_email (content, error) {
	var errorbox = $("#"+content+"Error_"+error);
	var email = $("#"+content).val();
	
	var errormessage;
	var email = email.trim();
	if (email != "") {
		if (!validate_email(email)) {
			errormessage = "<p>Contains Invalid Address</p>";
			errorbox.css("visibility", "visible").html(errormessage);		
			return false;	
		} else {
			errorbox.css("visibility", "hidden").html("");
			return true
		}
	} else {
		errorbox.css("visibility", "hidden").html("");
		return true
	}

}




function validate_email (emailStr) {
	
    /* The following pattern is used to check if the entered e-mail address
       fits the user@domain format.  It also is used to separate the username
       from the domain. */
    var emailPat=/^(.+)@(.+)$/
    /* The following string represents the pattern for matching all special
       characters.  We don't want to allow special characters in the address. 
       These characters include ( ) < > @ , ; : \ " . [ ]    */
    var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]"
    /* The following string represents the range of characters allowed in a 
       username or domainname.  It really states which chars aren't allowed. */
    var validChars="\[^\\s" + specialChars + "\]"
    /* The following pattern applies if the "user" is a quoted string (in
       which case, there are no rules about which characters are allowed
       and which aren't; anything goes).  E.g. "jiminy cricket"@disney.com
       is a legal e-mail address. */
    var quotedUser="(\"[^\"]*\")"
    /* The following pattern applies for domains that are IP addresses,
       rather than symbolic names.  E.g. joe@[123.124.233.4] is a legal
       e-mail address. NOTE: The square brackets are required. */
    var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/
    /* The following string represents an atom (basically a series of
       non-special characters.) */
    var atom=validChars + '+'
    /* The following string represents one word in the typical username.
       For example, in john.doe@somewhere.com, john and doe are words.
       Basically, a word is either an atom or quoted string. */
    var word="(" + atom + "|" + quotedUser + ")"
    // The following pattern describes the structure of the user
    var userPat=new RegExp("^" + word + "(\\." + word + ")*$")
    /* The following pattern describes the structure of a normal symbolic
       domain, as opposed to ipDomainPat, shown above. */
    var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$")
    
    
    /* Finally, let's start trying to figure out if the supplied address is
       valid. */
    
    /* Begin with the coarse pattern to simply break up user@domain into
       different pieces that are easy to analyze. */
    var matchArray=emailStr.match(emailPat)
    if (matchArray==null) {
      /* Too many/few @'s or something; basically, this address doesn't
         even fit the general mould of a valid e-mail address. */
    	//alert("Email address seems incorrect (check @ and .'s)")
    	return false
    }
    var user=matchArray[1]
    var domain=matchArray[2]
    
    // See if "user" is valid 
    if (user.match(userPat)==null) {
        // user is not valid
        //alert("The username doesn't seem to be valid.")
        return false
    }
    
    /* if the e-mail address is at an IP address (as opposed to a symbolic
       host name) make sure the IP address is valid. */
    var IPArray=domain.match(ipDomainPat)
    if (IPArray!=null) {
        // this is an IP address
    	  for (var i=1;i<=4;i++) {
    	    if (IPArray[i]>255) {
    	        //alert("Destination IP address is invalid!")
    		return false
    	    }
        }
        return true
    }
    
    // Domain is symbolic name
    var domainArray=domain.match(domainPat)
    if (domainArray==null) {
    	//alert("The domain name doesn't seem to be valid.")
        return false
    }
    
    /* domain name seems valid, but now make sure that it ends in a
       three-letter word (like com, edu, gov) or a two-letter word,
       representing country (uk, nl), and that there's a hostname preceding 
       the domain or country. */
    
    /* Now we need to break up the domain to get a count of how many atoms
       it consists of. */
    var atomPat=new RegExp(atom,"g")
    var domArr=domain.match(atomPat)
    var len=domArr.length
    if (domArr[domArr.length-1].length<2 || 
        domArr[domArr.length-1].length>3) {
       // the address must end in a two letter or three letter word.
       //alert("The address must end in a three-letter domain, or two letter country.")
       return false
    }
    
    // Make sure there's a host name preceding the domain.
    if (len<2) {
       var errStr="This address is missing a hostname!"
       //alert(errStr)
       return false
    }
    
    // If we've gotten this far, everything's valid!
    return true;
}