// The JavaScript Source http://javascript.internet.com
// V1.1.3: Sandeep V. Tamhankar
function wr(TXT){document.write(TXT)}
/**/
wr('<STYLE>\n');//#DDE8F5
wr('#AlertBox {position:absolute;left:0px;top:0px;margin:0px;font-family:verdana,Trebuchet MS,arial,tahoma;border:1px solid maroon;background-color:#F9FAFC;}\n');
wr('#AlertBox_Title {width:220px;font-size:12px;font-weight:bold;color:#797A7A;margin-top:12px;margin-left:12px;margin-right:12px;\n');
wr('padding:6px;border:1px solid #DDE8F5;background-color:#FCFADE;\n}');
wr('#AlertBox_Msg		{width:220px;color:#797A7A;margin:12px;}\n');
wr('.show{}\n .hide{display:none;}\n')
wr('</STYLE>\n');
document.write('<DIV ID="AlertBox" class="hide"><div id="AlertBox_Title"></div><div id="AlertBox_Msg"></div></DIV>\n');

function GetObj(ID){return document.getElementById(ID)}
function SHOW(ID){GetObj(ID).className='show'}
function HIDE(ID){GetObj(ID).className='hide'}
function AlertMsg(srcObj,ALERT_MSG,TITLE){
	PosPopMsg(srcObj,'AlertBox',-100,-20)
	GetObj('AlertBox_Title').innerHTML='<DIV class=RT><a href="#" onClick="HIDE(\'AlertBox\');return false;"><img src=/manta/images/img_x.gif alt=X width=19 height=13 border=0></a></DIV>'+TITLE
	GetObj('AlertBox_Msg').innerHTML=ALERT_MSG
	SHOW('AlertBox')
	GetObj('AlertBox').focus();
}

function getAbsolutePosition(element) {
	var r = { x: element.offsetLeft, y: element.offsetTop };
	if (element.offsetParent) {
		var tmp = getAbsolutePosition(element.offsetParent);
		r.x += tmp.x;
		r.y += tmp.y;
	}
	//if(element.id){alert(element.id)}
	return r;
}
function PosPopMsg(srcObj,ID,xLeft,yTop){
	posobj=GetObj(ID)
	if(!xLeft){xLeft=0}
	if(!yTop){yTop=0}
	// get DIV abs pos or mouse pos
	r=getAbsolutePosition(srcObj)
	LTpx=r.x;TPpx=r.y;
	if(isNaN(LTpx)){
		var coords = findCoords(event);
		posobj.style.top = coords[1] + yTop + "px";
		posobj.style.left = coords[0] + xLeft + "px"
	} else {
		posobj.style.top = TPpx + yTop + "px";
		posobj.style.left = LTpx + xLeft + "px"
	}
	//alert('LT:'+LTpx+' TP:'+TPpx)
}

function emailCheck (srcObj,emailStr) {
	var TITLE='Email Address';
	var checkTLD=1;
	var knownDomsPat=/^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum)$/;
	
	/* check user@domain format */
	var emailPat=/^(.+)@(.+)$/;
	/* no special characters: ( ) < > @ , ; : \ " . [ ] */
	var specialChars="\\(\\)><@,;:\\\\\\\"\\.\\[\\]";
	/* range of characters */
	var validChars="\[^\\s" + specialChars + "\]";
	/* if the "user" is a quoted string */
	var quotedUser="(\"[^\"]*\")";
	/*  IP addresses, @[123.124.233.4] is legal - square brackets are required. */
	var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/;
	/* atom (basically a series of non-special characters.) */
	var atom=validChars + '+';
	/* The following string represents one word in the typical username.
	For example, in john.doe@somewhere.com, john and doe are words.
	Basically, a word is either an atom or quoted string. */
	var word="(" + atom + "|" + quotedUser + ")";
	// describes the structure of the user
	var userPat=new RegExp("^" + word + "(\\." + word + ")*$");
	/* structure of a normal symbolic domain */
	var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$");
	/* break up user@domain */
	var matchArray=emailStr.match(emailPat);
	
	if (matchArray==null) {
		/* Too many/few @'s or something - not a valid e-mail address. */
		alert_msg="Email address seems incorrect (check @ and .'s)"
		AlertMsg(srcObj,alert_msg,TITLE)
		return false;
	}
	var user=matchArray[1];
	var domain=matchArray[2];
	
	// check basic ASCII chars(0-127).
	for (i=0; i<user.length; i++) {
		if (user.charCodeAt(i)>127) {
		alert_msg="This username of email contains invalid characters.";
		AlertMsg(srcObj,alert_msg,TITLE)
		return false;
	   }
	}
	for (i=0; i<domain.length; i++) {
		if (domain.charCodeAt(i)>127) {
		alert_msg="This domain name of email contains invalid characters.";
		AlertMsg(srcObj,alert_msg,TITLE)
		return false;
		}
	}
	
	// See if "user" is valid 
	if (user.match(userPat)==null) {
		// user is not valid
		alert_msg="The username doesn't seem to be valid.";
		AlertMsg(srcObj,alert_msg,TITLE)
		return false;
	}
	
	/* make sure the IP address is valid. */
	var IPArray=domain.match(ipDomainPat);
	if (IPArray!=null) {
		// is IP address
		for (var i=1;i<=4;i++) {
			if (IPArray[i]>255) {
				alert_msg="Email address destination IP address is invalid!";
				AlertMsg(srcObj,alert_msg,TITLE)
				return false;
		  }
		}
		return true;
	}
	
	// Domain is symbolic name.  Check if it's valid.
	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) {
		alert_msg="The domain name does not seem to be valid.";
		AlertMsg(srcObj,alert_msg,TITLE)
		return false;
		}
	}
	
	/* check domain ends in a (com, edu, gov)(uk, nl) */
	if (checkTLD && domArr[domArr.length-1].length!=2 && 
		domArr[domArr.length-1].search(knownDomsPat)==-1) {
		alert_msg="The address must end in a well-known domain or two letter " + "country.";
		AlertMsg(srcObj,alert_msg,TITLE)
		return false;
	}
	
	// check host name preceding the domain.
	if (len<2) {
		alert_msg="This address is missing a hostname!";
		AlertMsg(srcObj,alert_msg,TITLE)
		return false;
	}
	
	// valid
	return true;
}