function $(Obj){return document.getElementById(Obj);}
function ShowCss(This){
         var CssStr=This.className.split("_");
	     if (CssStr.length > 1){
		     var CssId=CssStr[0];
		     if (This.className==CssId+'_Off'){
				   This.className = CssId+'_On';
				   This.onmouseout=function(){This.className = CssId+'_Off';}
		     }
	     }
}