// JavaScript Document

var xf_opacities = new Array() ;
var xf_objects   = new Array() ;
var xf_stop      = new Array() ;
var xf_threads   = new Array() ;

var xf_speed = 5;
var xf_delay = 50 ;

function XFadeFindSlot() {
		if(xf_objects) {
				for(var i=0 ; i<xf_objects.length ; i++) {
					if(!xf_objects) {
						clearInterval(xf_threads[i]) ;
						return i ;
					}
				}
		}
		return xf_objects.length ;
}

function XFadeSetOpacity(object,val) {
	if(object && val) {
		if(object.filters) {
			if(object.filters.alpha) {
				object.filters.alpha.opacity = val ;	
			}
			else if(object.filters[0]) {
				object.filters[0].opacity = val ;
			}
		}
		else if(object.style) {
			//if(object.style.MozOpacity)
				if(val==100 && navigator.appVersion.indexOf("Safari")>-1) {
					val = 99 ;
				}
				object.style.MozOpacity = val / 100.0 ;
			//if(object.style.opacity)
				object.style.opacity    = val / 100.0 ;
		}
	} 
}

function XFadeClearOpacity(object) {
	if(object) {
		if(object.filters) {
			if(object.filters.alpha) {
				object.filters.alpha.opacity = 0 ;	
			}
			else if(object.filters[0]) {
				object.filters[0].opacity = 0 ;
			}
		}
		else if(object.style) {
			if(object.style.MozOpacity)
				object.style.MozOpacity = 0.0 ;
			if(object.style.opacity)
				object.style.opacity    = 0.0 ;
		}
	} 
}

function XFadeSetFullOpacity(object) {
	if(object) {
		if(object.filters) {
			if(object.filters.alpha) {
				object.filters.alpha.opacity = 100 ;	
			}
			else if(object.filters[0]) {
				object.filters[0].opacity = 100 ;
			}
		}
		else if(object.style) {
			//if(object.style.MozOpacity)
				var opval = 1.0 ;
				
				if(navigator.appVersion.indexOf("Safari") > -1) {
					opval = 0.99 ;
				}
				object.style.MozOpacity = opval ;
			//if(object.style.opacity)
				object.style.opacity    = opval ;
		}
	} 
}

function XFadeSetSpeed(val) {
		xf_speed = val ;
}


function XFadeSetDelay(val) {
		xf_delay = val ;
}

function XFadeStop(handle) {
	xf_stop[handle] = 1 ;
}

function XFadeIn(obj) {
	var slot = XFadeFindSlot() ;
	xf_opacities[slot] = 0 ;
	xf_objects[slot]   = obj ;
	xf_stop[slot]      = 0 ;
	// XFadeDoFadeIn(slot) ; 
	xf_threads[slot] = setInterval("XFadeDoFadeIn("+slot+") ;",xf_delay) ;
	return slot ;
}
	
function XFadeDoFadeIn(l) {

	var xf_obj = xf_objects[l] ;
	var xf_op  = xf_opacities[l] ;
	if(xf_obj) {
		if(xf_op<=100) {
			XFadeSetOpacity(xf_obj,xf_op) ;
			xf_opacities[l] += xf_speed ;
			// setTimeout("XFadeDoFadeIn("+l+");",xf_delay) ;
		}
		else {
			XFadeSetFullOpacity(xf_obj) ;
			xf_objects[l] = null ;
			clearInterval(xf_threads[l]) ;
		}
	}
}
function XFadeOut(obj) {
	var slot = XFadeFindSlot() ;
	xf_opacities[slot] = 100 ;
	xf_objects[slot]   = obj ;
	// XFadeDoFadeOut(slot) ;
	xf_threads[slot] = setInterval("XFadeDoFadeOut("+slot+") ;",xf_delay) ;	
}
	
function XFadeDoFadeOut(l) {

	var xf_obj = xf_objects[l] ;
	var xf_op  = xf_opacities[l] ;
	if(xf_obj) {
		if(xf_op>=0) {
			XFadeSetOpacity(xf_obj,xf_op) ;
			xf_opacities[l] -= xf_speed ;
			// setTimeout("XFadeDoFadeOut("+l+");",xf_delay) ;
		}
		else {
			XFadeClearOpacity(xf_obj) ;
			xf_objects[l] = null ;
			clearInterval(xf_threads[l]) ;
		}
	}
}