// home page javascript
start_ie_tnav = function() {
        if (document.all&&document.getElementById) {
                navRoot = document.getElementById("navigation");
                for (i=0; i<navRoot.childNodes.length; i++) {
                        node = navRoot.childNodes[i];
			curCname = this.className;
                        if (node.nodeName=="LI") {
                                node.onmouseover=function() {
                                        this.className+=" over";
                                }
                                node.onmouseout=function() {
                                        if(!curCname) {
                                                this.className=this.className.replace(" over","");
                                        }
                                        else {
                                                this.className=this.className.replace(" over",curCname);
                                        }
                                }
                        }
                }
        }
}

function swap_clogos_controller(count) {
	if (count <= 3) {
		outfade = "clp_"+count;
		if (count == 3){
			infade =  "clp_1";
			swap_clogos(outfade, infade)
			window.setTimeout("swap_clogos_controller(1)", 6000);
		}
		else {
			count++;
			infade =  "clp_"+count;
			swap_clogos(outfade, infade)
			window.setTimeout("swap_clogos_controller("+count+")", 6000);
		}
	}
}

function swap_clogos(fadeOut, fadeIn) {
	set_opacity(fadeIn,0);
	set_opacity(fadeOut,100);
	document.getElementById(fadeOut).className = 'show';
	document.getElementById(fadeIn).className = 'show';
	document.getElementById(fadeIn).style.display = 'inline';
	fade_in(fadeIn,0);
	fade_out(fadeOut,100);
}

function set_opacity(objId, opacity) {
	obj = document.getElementById(objId);
	opacity = (opacity == 100)?99.999:opacity;
	// windows IE
	obj.style.filter = "alpha(opacity:"+opacity+")";
	// konqueror, safari < 1.2
	obj.style.KHTMLOpacity = opacity/100;
	// old mozilla
	obj.style.MozOpacity = opacity/100;
	// modern browsers
	obj.style.opacity = opacity/100;
}

function fade_in(objId,opacity) {
	if (document.getElementById) {
		obj = document.getElementById(objId);
		if (opacity <= 100) {
			set_opacity(objId, opacity);
			opacity = opacity + 5;
			window.setTimeout("fade_in('"+objId+"',"+opacity+")", 100);
		}
		//else if (opacity == 100) {
		//	document.getElementById(objId).style.display = '#ffffff';
		//}
	}
}

function fade_out(objId,opacity) {
	if (document.getElementById) {
		obj = document.getElementById(objId);
		if (opacity == 0) {
			document.getElementById(objId).style.display = 'none';
		}
		else if (opacity > 0) {
			set_opacity(objId, opacity);
			opacity = opacity - 5;
			window.setTimeout("fade_out('"+objId+"',"+opacity+")", 100);
		}
	}
}

// function/array set for handling plos (page load objects)
function set_plos() {
	window.onload = plos_go;
}

function plos_go() {
	for(var i = 0;i < plos.length;i++)
		eval(plos[i]);
}

function plo_add(jso){
	plos[plos.length] = jso;
}

var plos = new Array();

// set each function to initialize on page load here
plo_add('start_ie_tnav()');
plo_add('swap_clogos_controller(1)');

set_plos();