/* --------------------------------------------------------------------------------
	file:		CrossBrowserFunctions.js
	purpose:	cross browser DOM access and modify functions, used mostly for UI stuff.
	created by:	Brandon Kelly / FauxTel, Inc.
	date:		August 24, 2004
   -------------------------------------------------------------------------------- */

var isW3C = (document.getElementById != null);
var isNN4 = (document.layers != null);
var isIE4 = (document.all != null);

function toggleLayer(name) {
	if (isW3C) {
		if (document.getElementById(name).style.visibility == 'hidden')
			document.getElementById(name).style.visibility = 'visible';
		else
			document.getElementById(name).style.visibility = 'hidden';
	} else if (isNN4) {
		// alert('NN4 toggle '+name+'('+document.layers[name].visibility +')');
		if (document.layers[name].visibility == 'hide')
			document.layers[name].visibility = 'visible';
		else
			document.layers[name].visibility = 'hidden';
	} else if (isIE4) {
		if (document.all.name.style.visibility == 'hidden')
			document.all.name.style.visibility = 'visible';
		else
			document.all.name.style.visibility = 'hidden';
	}
}
	function getHandlerName(functionText)
        {
                var nameStartToEnd=functionText.replace("function","");
                functionName=nameStartToEnd.substring(1,nameStartToEnd.indexOf("("));
                /*
                var nameEndChar=nameStartToEnd.indexOf("(");
                var functionName=nameStartToEnd.substring(1,nameEndChar);
                */
                return(functionName);
		}	
function showLayer(name) {
	if (isW3C) {
		document.getElementById(name).style.visibility = 'visible';
	} else if (isNN4) {
		document.layers[name].visibility = 'visible';
	} else if (isIE4) {
		document.all.name.style.visibility = 'visible';
	}
}
	
function hideLayer(name) {
	if (isW3C) {
		document.getElementById(name).style.visibility = 'hidden';
	} else if (isNN4) {
		document.layers[name].visibility = 'hidden';
	} else if (isIE4) {
		document.all.name.style.visibility = 'hidden';
	}
}
	
function getObj(id) {
	if (isW3C) {
		return document.getElementById(id);
	} else if (isIE4) {
		return document.all[id];
	} else if (isNN4) {
		return document.layers[id];
	}
}

function getStyle(id) {
	if (isW3C) {
		return document.getElementById(id).style;
	} else if (isIE4) {
		return document.all[id].style;
	} else if (isNN4) {
		return document.layers[id];
	}
}

function selectOption(element, value) {
	var i;
	for (i=0;i<element.options.length;i++) {
		if (element.options[i].value.toLowerCase() == value.toLowerCase()) {
			element.selectedIndex = i;
		}
	}
}

function selectedValue(element) {
	return element.options[element.selectedIndex].value
}