/* ***********************************************************
Example 4-3 (DHTMLapi.js)
"Dynamic HTML:The Definitive Reference"
2nd Edition
by Danny Goodman
Published by O'Reilly & Associates  ISBN 1-56592-494-0
http://www.oreilly.com
Copyright 2002 Danny Goodman.  All Rights Reserved.
************************************************************ */
// DHTMLapi.js custom API for cross-platform
// object positioning by Danny Goodman (http://www.dannyg.com).
// Release 2.0. Supports NN4, IE, and W3C DOMs.

// Global variables
var isCSS, isW3C, isIE4, isNN4;
var hasInitCH;

function focusSiteSearch( elem )
{
	var elem = document.getElementById("searchGadget"); 
	if(elem && elem.value=='site search')
		elem.value = '';
}
function focusOnLoad( )
{  
	do_js_emails( );
	var elem = document.getElementById("searchGadget"); 
	if(elem && elem.value=='') 
		elem.value = 'site search';
	//initDHTMLAPI();
}

// initialize upon load to let all browsers establish content objects
function initDHTMLAPI( is_hp ) {
    if (document.images) {
        isCSS = (document.body && document.body.style) ? true : false;
        isW3C = (isCSS && document.getElementById) ? true : false;
        isIE4 = (isCSS && document.all) ? true : false;
        isNN4 = (document.layers) ? true : false;
        isIE6CSS = (document.compatMode && document.compatMode.indexOf("CSS1") >= 0) ? true : false;
    }
    clarkhill_height_fix( is_hp );
//  document.onresize=clarkhill_height_fix;
}
function clarkhill_height_fix( is_hp )
{
	return;
	var agt=navigator.userAgent.toLowerCase();
	var is_safari = ((agt.indexOf('safari')!=-1)&&
		(agt.indexOf('mac')!=-1))?true:false;
	var appVer = navigator.appVersion.toLowerCase();
	var is_minor = parseFloat(appVer);
	var is_major = parseInt(is_minor);
	var iePos  = appVer.indexOf('msie');
	if (iePos !=-1) {
	       is_minor = parseFloat(appVer.substring(iePos+5,
	       		appVer.indexOf(';',iePos)));
	       is_major = parseInt(is_minor);
	}
	var is_mac    = (agt.indexOf("mac")!=-1);
	var is_ie   = (iePos!=-1);
	var is_ie3  = (is_ie && (is_major < 4));
	
	var is_ie4   = (is_ie && is_major == 4);
	var is_ie4up = (is_ie && is_minor >= 4);
	var is_ie5   = (is_ie && is_major == 5);
	var is_ie5up = (is_ie && is_minor >= 5);
	
	var is_ie5_5  = (is_ie && (agt.indexOf("msie 5.5") !=-1));
	var is_ie5_5up =(is_ie && is_minor >= 5.5);             
	
	var is_ie6   = (is_ie && is_major == 6);
	var is_ie6up = (is_ie && is_minor >= 6);

	//if((!is_safari)&&(!is_ie))
	if( ! is_ie )
	{
		// mozilla-like
		getRawObject("page").style.minHeight 
			= (getInsideWindowHeight() - 10) + "px";
		if(!(is_hp==1)) return;
	}
	
	var pageHeight    = getObjectHeight("page");
	var windowHeight  = getInsideWindowHeight();
	var topHeight     = getObjectHeight("graphic") 
			  + getObjectHeight("header");
	var conHeight     = getObjectHeight("content");
	
	var newHeight	  = 0;
	var subDiff       = 10;
	
	if( (topHeight + conHeight + 25) > pageHeight )
		newHeight = topHeight + conHeight;
	else
		newHeight = windowHeight;
	
	if( newHeight < windowHeight )
		newHeight = windowHeight;
	else
	{
		//if(is_hp==8) return; // special
		//if(is_hp==7) return; // large fmt
	}
	
	
	newHeight         -= subDiff;
	
	var pageObj	  = getRawObject("page");
	if( pageObj )
		pageObj.style.height = newHeight + "px";
	
	
	
}
// set event handler to initialize API - done already
//window.onload = initDHTMLAPI;

// Seek nested NN4 layer from string name
function seekLayer(doc, name) {
    var theObj;
    for (var i = 0; i < doc.layers.length; i++) {
        if (doc.layers[i].name == name) {
            theObj = doc.layers[i];
            break;
        }
        // dive into nested layers if necessary
        if (doc.layers[i].document.layers.length > 0) {
            theObj = seekLayer(document.layers[i].document, name);
        }
    }
    return theObj;
}

// Convert object name string or object reference
// into a valid element object reference
function getRawObject(obj) {
    var theObj;
    if (typeof obj == "string") {
        if (isW3C) {
            theObj = document.getElementById(obj);
        } else if (isIE4) {
            theObj = document.all(obj);
        } else if (isNN4) {
            theObj = seekLayer(document, obj);
        }
    } else {
        // pass through object reference
        theObj = obj;
    }
    return theObj;
}

// Convert object name string or object reference
// into a valid style (or NN4 layer) reference
function getObject(obj) {
    var theObj = getRawObject(obj);
    if (theObj && isCSS) {
        theObj = theObj.style;
    }
    return theObj;
}

// Position an object at a specific pixel coordinate
function shiftTo(obj, x, y) {
    var theObj = getObject(obj);
    if (theObj) {
        if (isCSS) {
            // equalize incorrect numeric value type
            var units = (typeof theObj.left == "string") ? "px" : 0 
            theObj.left = x + units;
            theObj.top = y + units;
        } else if (isNN4) {
            theObj.moveTo(x,y)
        }
    }
}

// Move an object by x and/or y pixels
function shiftBy(obj, deltaX, deltaY) {
    var theObj = getObject(obj);
    if (theObj) {
        if (isCSS) {
            // equalize incorrect numeric value type
            var units = (typeof theObj.left == "string") ? "px" : 0 
            theObj.left = getObjectLeft(obj) + deltaX + units;
            theObj.top = getObjectTop(obj) + deltaY + units;
        } else if (isNN4) {
            theObj.moveBy(deltaX, deltaY);
        }
    }
}

// Set the z-order of an object
function setZIndex(obj, zOrder) {
    var theObj = getObject(obj);
    if (theObj) {
        theObj.zIndex = zOrder;
    }
}

// Set the background color of an object
function setBGColor(obj, color) {
    var theObj = getObject(obj);
    if (theObj) {
        if (isNN4) {
            theObj.bgColor = color;
        } else if (isCSS) {
            theObj.backgroundColor = color;
        }
    }
}

// Set the visibility of an object to visible
function show(obj) {
    var theObj = getObject(obj);
    if (theObj) {
        theObj.visibility = "visible";
    }
}

// Set the visibility of an object to hidden
function hide(obj) {
    var theObj = getObject(obj);
    if (theObj) {
        theObj.visibility = "hidden";
    }
}

// Retrieve the x coordinate of a positionable object
function getObjectLeft(obj)  {
    var elem = getRawObject(obj);
    var result = 0;
    if (document.defaultView) {
        var style = document.defaultView;
        var cssDecl = style.getComputedStyle(elem, "");
        result = cssDecl.getPropertyValue("left");
    } else if (elem.currentStyle) {
        result = elem.currentStyle.left;
    } else if (elem.style) {
        result = elem.style.left;
    } else if (isNN4) {
        result = elem.left;
    }
    return parseInt(result);
}

// Retrieve the y coordinate of a positionable object
function getObjectTop(obj)  {
    var elem = getRawObject(obj);
    var result = 0;
    if (document.defaultView) {
        var style = document.defaultView;
        var cssDecl = style.getComputedStyle(elem, "");
        result = cssDecl.getPropertyValue("top");
    } else if (elem.currentStyle) {
        result = elem.currentStyle.top;
    } else if (elem.style) {
        result = elem.style.top;
    } else if (isNN4) {
        result = elem.top;
    }
    return parseInt(result);
}

// Retrieve the rendered width of an element
function getObjectWidth(obj)  {
    var elem = getRawObject(obj);
    var result = 0;
    if (elem.offsetWidth) {
        result = elem.offsetWidth;
    } else if (elem.clip && elem.clip.width) {
        result = elem.clip.width;
    } else if (elem.style && elem.style.pixelWidth) {
        result = elem.style.pixelWidth;
    }
    return parseInt(result);
}

// Retrieve the rendered height of an element
function getObjectHeight(obj)  {
    var elem = getRawObject(obj);
    var result = 0;
    if (elem.offsetHeight) {
        result = elem.offsetHeight;
    } else if (elem.clip && elem.clip.height) {
        result = elem.clip.height;
    } else if (elem.style && elem.style.pixelHeight) {
        result = elem.style.pixelHeight;
    }
    return parseInt(result);
}


// Return the available content width space in browser window
function getInsideWindowWidth() {
    if (window.innerWidth) {
        return window.innerWidth;
    } else if (isIE6CSS) {
        // measure the html element's clientWidth
        return document.body.parentElement.clientWidth
    } else if (document.body && document.body.clientWidth) {
        return document.body.clientWidth;
    }
    return 0;
}
// Return the available content height space in browser window
function getInsideWindowHeight() {
    if (window.innerHeight) {
        return window.innerHeight;
    } else if (isIE6CSS) {
        // measure the html element's clientHeight
	if(document.body.parentElement)
		if(document.body.parentElement.clientHeight)
			return document.body.parentElement.clientHeight
	else
		return document.body.clientHeight;
    } else if (document.body && document.body.clientHeight) {
        return document.body.clientHeight;
    }
    return 0;
}