function changenav_main(id) {
    document.getElementById("navbar").src = 'http://www.gamersunity.de/design/navbar_' + id + '.gif';
    
    document.getElementById("subnav_1").style.visibility = 'hidden';
    document.getElementById("subnav_1").style.height = '0px';
    document.getElementById("subnav_2").style.visibility = 'hidden';
    document.getElementById("subnav_2").style.height = '0px';
    document.getElementById("subnav_3").style.visibility = 'hidden';
    document.getElementById("subnav_3").style.height = '0px';
	document.getElementById("subnav_4").style.visibility = 'hidden';
    document.getElementById("subnav_4").style.height = '0px';
	document.getElementById("subnav_5").style.visibility = 'hidden';
    document.getElementById("subnav_5").style.height = '0px';
	document.getElementById("subnav_6").style.visibility = 'hidden';
    document.getElementById("subnav_6").style.height = '0px';

    
    document.getElementById("subnav_" + id).style.visibility = 'visible';
    document.getElementById("subnav_" + id).style.height = '15px';
    
}

function changenav_gu(id) {
    document.getElementById("navbar").src = 'http://www.gamersunity.de/design/navi/navbar_' + id + '.gif';
    
    document.getElementById("subnav_1").style.visibility = 'hidden';
    document.getElementById("subnav_1").style.height = '0px';
    document.getElementById("subnav_2").style.visibility = 'hidden';
    document.getElementById("subnav_2").style.height = '0px';
    document.getElementById("subnav_3").style.visibility = 'hidden';
    document.getElementById("subnav_3").style.height = '0px';
	document.getElementById("subnav_4").style.visibility = 'hidden';
    document.getElementById("subnav_4").style.height = '0px';
	document.getElementById("subnav_5").style.visibility = 'hidden';
    document.getElementById("subnav_5").style.height = '0px';
	document.getElementById("subnav_6").style.visibility = 'hidden';
    document.getElementById("subnav_6").style.height = '0px';
	document.getElementById("subnav_7").style.visibility = 'hidden';
    document.getElementById("subnav_7").style.height = '0px';

    
    document.getElementById("subnav_" + id).style.visibility = 'visible';
    document.getElementById("subnav_" + id).style.height = '15px';
    
}

function ManageVisibility() {
    this.mouseover_1 = 'no';
	this.mouseover_2 = 'no';
	this.menuboxid = false;
	this.instancename = false;
	this.timesincemouseout = 0;
	this.menuboxids = ["mbox_1","mbox_2","mbox_3","mbox_4","mbox_5","mbox_6","mbox_7","mbox_8","mbox_9","mbox_10","mbox_11","mbox_12","mbox_13","mbox_14","mbox_15"];
	
	this.over_1 = function() {
	    this.mouseover_1 = 'yes';
	    this.timesincemouseout = 0;
	    this.checkhoverstatus();
	}
	
	this.over_2 = function() {
	    this.mouseover_2 = 'yes';
	    this.timesincemouseout = 0;
	    this.checkhoverstatus();
	}
	
	this.out_1 = function() {
	    this.mouseover_1 = 'no';
	    this.checkhoverstatus();
	}
	
	this.out_2 = function() {
	    this.mouseover_2 = 'no';
	    this.checkhoverstatus();
	}
	
		
	this.checkhoverstatus = function() {
	   
	    if(this.mouseover_1 == 'yes' || this.mouseover_2 == 'yes') {

            for (var i in this.menuboxids) {
               if(document.getElementById(this.menuboxids[i])) {
                    if(this.menuboxids[i] != this.menuboxid) {
                        document.getElementById(this.menuboxids[i]).style.visibility = 'hidden';
                    }
                }
            }
	        
	        document.getElementById(this.menuboxid).style.visibility = 'visible';
	    }
	    
	    if(this.mouseover_1 == 'no' && this.mouseover_2 == 'no') {
	         var eins = 1;
	         this.timesincemouseout = eval(this.timesincemouseout + "+" + eins);
	         if(this.timesincemouseout > 3) {
	             document.getElementById(this.menuboxid).style.visibility = 'hidden';
	             this.timesincemouseout = 0;
	         } else {
	             setTimeout('eval(\'' + this.instancename + '.checkhoverstatus()\');', 1);
	         }
	         
	    }
	    
	}
	
	this.initialize = function() {
	    for (var i in this.menuboxids) {
            if(document.getElementById(this.menuboxids[i])) {
                document.getElementById(this.menuboxids[i]).style.visibility = 'hidden';
            }
         }
	}
	

}


nav_mbox1 = new ManageVisibility();
nav_mbox1.instancename = 'nav_mbox1';
nav_mbox1.menuboxid = 'mbox_1';
nav_mbox2 = new ManageVisibility();
nav_mbox2.instancename = 'nav_mbox2';
nav_mbox2.menuboxid = 'mbox_2';
nav_mbox3 = new ManageVisibility();
nav_mbox3.instancename = 'nav_mbox3';
nav_mbox3.menuboxid = 'mbox_3';
nav_mbox4 = new ManageVisibility();
nav_mbox4.instancename = 'nav_mbox4';
nav_mbox4.menuboxid = 'mbox_4';
nav_mbox5 = new ManageVisibility();
nav_mbox5.instancename = 'nav_mbox5';
nav_mbox5.menuboxid = 'mbox_5';
nav_mbox6 = new ManageVisibility();
nav_mbox6.instancename = 'nav_mbox6';
nav_mbox6.menuboxid = 'mbox_6';
nav_mbox7 = new ManageVisibility();
nav_mbox7.instancename = 'nav_mbox7';
nav_mbox7.menuboxid = 'mbox_7';
nav_mbox8 = new ManageVisibility();
nav_mbox8.instancename = 'nav_mbox8';
nav_mbox8.menuboxid = 'mbox_8';
nav_mbox9 = new ManageVisibility();
nav_mbox9.instancename = 'nav_mbox9';
nav_mbox9.menuboxid = 'mbox_9';
nav_mbox10 = new ManageVisibility();
nav_mbox10.instancename = 'nav_mbox10';
nav_mbox10.menuboxid = 'mbox_10';
nav_mbox11 = new ManageVisibility();
nav_mbox11.instancename = 'nav_mbox11';
nav_mbox11.menuboxid = 'mbox_11';
nav_mbox12 = new ManageVisibility();
nav_mbox12.instancename = 'nav_mbox12';
nav_mbox12.menuboxid = 'mbox_12';
nav_mbox13 = new ManageVisibility();
nav_mbox13.instancename = 'nav_mbox13';
nav_mbox13.menuboxid = 'mbox_13';
nav_mbox14 = new ManageVisibility();
nav_mbox14.instancename = 'nav_mbox14';
nav_mbox14.menuboxid = 'mbox_14';
nav_mbox15 = new ManageVisibility();
nav_mbox15.instancename = 'nav_mbox15';
nav_mbox15.menuboxid = 'mbox_15';