//===========================================================

//	Standard.js

// ----------------------------------------------------------

// This file contains generic JavaScript functions used 

// throughout the Bridger library.

// ----------------------------------------------------------

// Copyright (c)2004 Xionetic Technologies

//===========================================================

// ===================================================

// Global Constants and Macros

// ===================================================

var D=document;

var T=true;

var F=false;

var U="undefined";

var N=null;

//var tmp;

var BCAP;   //browser capable flag

//===========================================================

// isdf (is defined)

//-----------------------------------------------------------

// Returns true if the given value is defined or false if not

//-----------------------------------------------------------

// o - object to check for existence.

//===========================================================

function isdf(o)

{

	return (typeof(o)!=U);

}

//===========================================================

//	get

//-----------------------------------------------------------

// Similar to getElementById.  This function also handles

// clientid vs uniqueid name differences.

//-----------------------------------------------------------

// x = id of the element to get

//===========================================================

function get(x)

{

	var c=D.getElementById(x)

	if(c==N)

	{

		var re = new RegExp (':', 'gi') ;

		c = D.getElementById(x.replace(re,'_'));

	}

	return c;

}//get

//===========================================================

// fixE

//-----------------------------------------------------------

// Adds standard properties to an event so that we can have

// cross-browser processing

//-----------------------------------------------------------

// e = event object

//===========================================================

function fixE(e)

{

	if(!isdf(e)) e = window.event;

	if(!isdf(e.srcElement)) e.srcElement = e.target;

	if(!isdf(e.keyCode)) e.keyCode = e.which;

	return e;

}

// ========================

// Generic Functions

// ========================

//===========================================================

// show (ShowControl)

//-----------------------------------------------------------

// displays or hides a control

//-----------------------------------------------------------

// c = control to display

// v = visibility flag

//===========================================================

function show(c, v)

{

	// IE, NS7

	if(v)

		c.style.visibility='visible';

	else

		c.style.visibility='hidden';

}//show

//===========================================================

// enable (EnableControl)

//-----------------------------------------------------------

// enables or disables a control

//-----------------------------------------------------------

// n = name of control to enable

// e = enabled flag

//===========================================================

function enable(n,e)

{

	var c=get(n);

	c.disabled=!e;

}

//===========================================================

// clrLst (ClearControls)

//-----------------------------------------------------------

// clears input out of a list of controls

//-----------------------------------------------------------

// l = list of control id's

//===========================================================

function clrLst(l)

{

	var i;

	for(i=0;i<l.length;i++)

		clear(get(l[i]));

}//clrLst

//===========================================================

// clrChld (recursive)

//-----------------------------------------------------------

// Clears all form fields that are children of control c

//-----------------------------------------------------------

// c - object of the parent control

//===========================================================

function clrChld(c)

{

	var i;

	var o;

	if(isdf(c.childNodes))

	{

		o=c.childNodes;

		for(i=0;i<o.length;i++)

			clrChld(o[i]);

	}

	clr(c);

} // clrChld

//===========================================================

// clr

//-----------------------------------------------------------

// Clears the value of the current object.  If the object is 

// not a form field, it is ignored.

//-----------------------------------------------------------

// c - Object to clear

//===========================================================

function clr(c)

{

	switch(c.type)

	{

		case 'text':

			c.value='';

			break;

		case 'select-one':

			c.selectedIndex = 0;

			break;

		case 'select-multiple':

			c.selectedIndex = -1;

			break;

		case 'checkbox':

			if(c.checked)

				c.click();

			break;

		default:

	}

} // clr

//===========================================================

// df_set

//-----------------------------------------------------------

// Checks to see if a default button has been set for the 

// form.  

//-----------------------------------------------------------

// f = form variable

// Returns true if a default button is set or false if it is 

// not.

//===========================================================

function df_set(f)

{

	if(isdf(f.df_e))

		return f.df_e;

	return F;

}

//===========================================================

// foc (SetFocus)

//-----------------------------------------------------------

// Sets the focus on a control

//-----------------------------------------------------------

// i = the id of the control to focus

//===========================================================

function foc(i)

{

	var c;

	if(typeof(i)=='string')

		c = get(i);

	else

		c = i;

	try {

		if(isdf(c)&&(c!=N)&&isdf(c.focus))

			c.focus();

	}

   catch(err){return;}

}//foc

//===========================================================

// initPage (InitializePage)

//-----------------------------------------------------------

// Call all functions to initialize the page.

//===========================================================

function initPage()

{

   BCAP = isBCap();

	preload();

}//initPage

//===========================================================

// isBCap (_IsBrowserCapable)

//-----------------------------------------------------------

// Determine if the browser has either getElementById or document.all.

// Generate a getElementById function to be used by all other JavaScript

// functions for easy object retrieval.

//===========================================================

function isBCap() 

{

	if(typeof(__doPostBack) == U) return F;

	if(typeof(D.getElementById) == U) 

	{

		if(typeof(D.all) != U)

			D.getElementById = function(id){return D.all[id];};

		else 

			return F;

	}

	return T;

}//isBCap

//===========================================================

// noBack (DisableBack)

//-----------------------------------------------------------

// Disable the back button.

//===========================================================

function noBack()

{

	window.history.forward();

}//noBack

//===========================================================

// preload (_PreloadImages)

//-----------------------------------------------------------

// Pre-load registered images into memory for better display

//===========================================================

function preload()

{

	if( typeof(arImgUrls) == U )

		return;

	D.arImgs=new Array();

	for(var i=0;i<arImgUrls.length;i++)

	{

	   D.arImgs[i]=new Image;

	   D.arImgs[i].src=arImgUrls[i];

	}

}//preload

//===========================================================

// rmvOp (RemoveAllOptions)

//-----------------------------------------------------------

//	Remove all options for a given selection control.

//-----------------------------------------------------------

// c = selection control

//===========================================================

function rmvOp(c)

{

	for (var i=(c.options.length-1); i>=0; i--) 

		c.options[i]=N; 

	c.selectedIndex=-1; 

}//rmvOp

//===========================================================

// selOp (SelectOption)

//-----------------------------------------------------------

// Select an option in a selection control

//-----------------------------------------------------------

// c = selection control

// v = value to select

//===========================================================

function selOp(c, v)

{

	for(var i=0; i<c.options.length; i++)

		if(c.options[i].value == v)

		{	

			c.selectedIndex = i;

			break;

		}

}//selOp

//===========================================================

// getScroll

//-----------------------------------------------------------

//	Gets the scroll position for the given object.

//-----------------------------------------------------------

//	d - Name of the div object.

// v - Name of the hidden field in which to store vertical

//     position.

// h - Name of the hidden field in which to store horinzontal

//		 position.

//===========================================================

function getScroll(d,v,h)

{

	var o;

	var od = get(d);

	if(v != '')

	{

		o = get(v);

		o.value = od.scrollTop;

	}

	if(h != '')

	{

		o = get(h);

		o.value = od.scrollLeft;

	}

}//loadScroll

//===========================================================

// setScroll

//-----------------------------------------------------------

//	Sets the scroll position for the given object.

//-----------------------------------------------------------

//	d - Name of the div object.

// v - Vertical scroll value.

// h - Horizontal scroll value.

//===========================================================

function setScroll(d,v,h)

{

	var od = get(d);

	od.scrollLeft = h;

	od.scrollTop = v;

}//saveScroll

//===========================================================

// win (NewWindow)

//-----------------------------------------------------------

// Open a new browser window.

//-----------------------------------------------------------

// p = page to display

// n = window name

// w = window width

// h = window height

// r = resizeable flag - 'yes' if resizeable

// m = menubar flag - 'yes' if menubar should be present 

// s = scrollbars flag - 'yes' if scrollbars allowed

// l = locations flag - 'yes' if location bar should be present

// t = toolbar flag - 'yes' if toolbar should be present

//===========================================================

function win(p,n,w,h,r,m,s,l,t)

{

	// Set defaults

	if(r==N)

		r='yes';

	if(m==N)

		m='yes';

	if(s==N)

		s='yes';

	if(l==N)

		l='yes';

	if(t==N)

		t='yes';

	var opt='resizable='+r+',menubar='+m+',scrollbars='+s+',location='+l+',toolbar='+t;

	if(w!=N)

	{

		opt+=',width='+w;

		lft=(screen.width)?(screen.width-w)/2:0;

		opt+=',left='+lft;

	}

	if(h!=N)

	{

		opt+=',height='+h;

		tp=(screen.height)?(screen.height-h)/2:0;

		opt+=',top='+tp;

	}

	

	var r= window.open(p,n,opt);

	if(r != null)

		r.focus();

	return r;

}//win