//**********************************************************************
//***	FILE NAME		:	JS_Functions.js
//***	AUTHOR			:	
//***	DATE				:	
//***	
//***	DESCRIPTION	:	This file contains common client side functions
//***								
//***	1.	
//**********************************************************************

/* ------------------------- 
Global Variables 
---------------------------*/
	var strSaveColor;
	var highlightColor = "yellow";
	
	var csr_hand = 'hand';
	var csr_auto = 'auto';



//----------------------------------------------------------------------
//Name				: chgColorTo
//Description : changes the background color of a Table Row
//Inputs			: String
//Output			: 
//----------------------------------------------------------------------
			
function chgColorTo(highlightColor)
{
	source=event.srcElement;
	if (source.tagName=="TABLE")
	{
		return;
	}
	while(source.tagName!="TR")	{
		source = source.parentElement;
		//if (source.style.backgroundColor != highlightColor && source.id != "ignore")
		if (source.style.backgroundColor!=highlightColor)
		{
			switch(source.className)
			{
				case "DatagridHeader":
					break;
					
				case "DatagridPaging":
					break;
				
				case "DatagridFooter":
					break;
				
				default:
					strSaveColor = source.style.backgroundColor;
					source.style.backgroundColor=highlightColor;		
			}
		}
	}

}	

//******************************************************************************
//Name				: chgColorBack
//Description : changes the background color of a Table Row back to its original
//							color
//Inputs			: String
//Output			: 
//******************************************************************************

function chgColorBack(originalcolor){
	if (event.fromElement.contains(event.toElement)||source.contains(event.toElement) || source.className=="DatagridHeader" || source.className=="DatagridPaging" || source.className=="DatagridFooter")
	{
		return;
	}
	if (event.toElement != source)
	{
		source.style.backgroundColor = strSaveColor;
	}
	
}			

//******************************************************************************
//Name				: highlight(wht)
//Description : Highlight a row
//Inputs			: object row object to be highlighted
//Output			: 
//******************************************************************************

function highlight(wht)
{
	
	if (wht.style.backgroungColor = "")
	{
		strSaveColor = "default";
	}
	else
	{
		strSaveColor = wht.style.backgroundColor;
	}
	
	wht.style.backgroundColor = highlightColor;
	
}

//******************************************************************************
//Name				: unhighlight(wht)
//Description : Returns Highlighted row to original color
//Inputs			: object row object to be highlighted
//Output			: 
//******************************************************************************


function unhighlight(wht)
{
	wht.style.backgroundColor = strSaveColor;
}
		
//trim functions
/*----------------------------------------------------------
	3.	LTrim(str)
-----------------------------------------------------------*/  

	function LTrim(str, wht) {
	 for (var i=0; str.charAt(i)==' '; i++);
	 return str.substring(i,str.length);
	}
	
/*----------------------------------------------------------
	4.	RTrim(str)
-----------------------------------------------------------*/  
	
	function RTrim(str) {
	 for (var i=str.length-1; str.charAt(i)==' '; i=i-1);
	 return str.substring(0,i+1);
	}
	
/*----------------------------------------------------------
	5.	Trim(str) - Left & Right Trim
-----------------------------------------------------------*/  
	
	function Trim(str) {
	 return LTrim(RTrim(str));
	}		

	
/*----------------------------------------------------------
	6.	change_cursor(obj, csr, showhide)
				obj					: object 
				csr					: 'help', 'hand', 'wait', etc...
				showhide		: 0 - hide
										:	1 - show 
-----------------------------------------------------------*/  

	function change_cursor(obj, csr, showhide)
	{
		if (showhide == '1')
		{
			obj.style.cursor = 'hand';
		}
		else
		{
			obj.style.cursor = 'auto';
		}
		
	}	
			
			
/*----------------------------------------------------------
	7.	emailCheck(emailStr)
-----------------------------------------------------------*/  
	/*
		2005-11-04	AEKirin	copied from contact.asp
			- added to feedback.asp
			-	commentd alert(..)'s, handling this error on the page.	
	
	*/
	//<!-- Changes:  Sandeep V. Tamhankar (stamhankar@hotmail.com) -->
	
	/* 1.1.2: Fixed a bug where trailing . in e-mail address was passing
	            (the bug is actually in the weak regexp engine of the browser; I
	            simplified the regexps to make it work).
	   1.1.1: Removed restriction that countries must be preceded by a domain,
	            so abc@host.uk is now legal.  However, there's still the
	            restriction that an address must end in a two or three letter
	            word.
	     1.1: Rewrote most of the function to conform more closely to RFC 822.
	     1.0: Original  */
	
	//<!-- This script and many more are available free online at -->
	//<!-- The JavaScript Source!! http://javascript.internet.com -->
	
	<!-- Begin
	function emailCheck (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;
	
	}