function showmenu() {	
	hideflash();
	setfilter("website");
	setfilter("content");
	setfilter("header");		
	setfilter("footer");
	umenu = document.getElementById("usermenu").style;
	umenu.height = '500px';
	umenu.top = gettop(500)+'px';
	umenu.left = getleft(700)+'px';
	umenu.display = 'block';
}
function hidemenu() {	
	showflash();
	unsetfilter("website");	
	unsetfilter("content");	
	unsetfilter("header");		
	unsetfilter("footer");
	umenu = document.getElementById("usermenu").style;
	umenu.height = '0px';
	umenu.display = 'none';
}

function hideflash() {
	flash = document.getElementsByTagName('embed');
	for (var i=0; i<flash.length; i++) {
		flash[i].style.visibility = 'hidden';
	}
}
function showflash() {
	flash = document.getElementsByTagName('embed');
	for (var i=0; i<flash.length; i++) {
		flash[i].style.visibility = 'visible';
	}
}

function gettop(height) {
	var Ya = parseFloat(window.pageYOffset);	
	var Yb = parseFloat(document.body.scrollTop);	
	var Yc = parseFloat(document.documentElement.scrollTop);	
	if(!isNaN(Ya)&&Ya!=0) {Y=Ya;} else if(!isNaN(Yb)&&Yb!=0) {Y=Yb;} else if(!isNaN(Yc)&&Yc!=0) {Y=Yc;} else {Y=0;}
	
	var Sa = parseFloat(window.innerHeight);	
	var Sb = parseFloat(document.body.clientHeight);	
	var Sc = parseFloat(document.documentElement.clientHeight);	 
	if(!isNaN(Sa)&&Sa!=0) {S=Sa;} else if(!isNaN(Sb)&&Sb!=0) {S=Sb;} else if(!isNaN(Sc)&&Sc!=0) {S=Sc;} else {S=0;}	
	if(S<=height){S=height;}
	
	var top = (0.5*(S-height))+Y; return top;
}
function getleft(width) {
	var Xa = parseFloat(window.pageXOffset);	
	var Xb = parseFloat(document.body.scrollLeft);	
	var Xc = parseFloat(document.documentElement.scrollLeft);	
	if(!isNaN(Xa)&&Xa!=0) {X=Xa;} else if(!isNaN(Xb)&&Xb!=0) {X=Xb;} else if(!isNaN(Xc)&&Xc!=0) {X=Xc;} else {X=0;}
	
	var Sa = parseFloat(window.innerWidth);	
	var Sb = parseFloat(document.body.clientWidth);	
	var Sc = parseFloat(document.documentElement.clientWidth);	 
	if(!isNaN(Sa)&&Sa!=0) {S=Sa;} else if(!isNaN(Sb)&&Sb!=0) {S=Sb;} else if(!isNaN(Sc)&&Sc!=0) {S=Sc;} else {S=0;}	
	if(S<=width){S=width;}
	
	var left = (0.5*(S-width))+X; return left;
}

function setfilter(webid) {
	document.getElementById(webid).style.opacity = 0.4;
	document.getElementById(webid).style.MozOpacity = 0.4;
	document.getElementById(webid).style.KhtmlOpacity = 0.4;
	document.getElementById(webid).style.filter = "alpha(opacity=" + 40 + ")";
}
function unsetfilter(webid) {
	document.getElementById(webid).style.opacity = 1;
	document.getElementById(webid).style.MozOpacity = 1;
	document.getElementById(webid).style.KhtmlOpacity = 1;
	document.getElementById(webid).style.filter = "alpha(opacity=" + 100 + ")";
}