var ivnone='hidden'
var dsname='1'
function menuShow(ivname,ivblock,iv_display_name,dsnames)
{
	
var stiv = document.getElementById(ivname);
var stiv_display = document.getElementById(iv_display_name);		
		for(i=0;i<4;i++){
			var iv_display = document.getElementById("show"+i);	
				iv_display.style.visibility=ivnone;
			}
			stiv.style.visibility=ivblock;
		if(ivblock=='visible'){
			stiv_display.className = 'yoff';
		}else{
			stiv_display.className = 'yon';
		}
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}