function linkurl (obj) {
	switch (obj){
	case "1" :			
		location.href = "/union_1.asp";	
		//alert(obj.className);
		//obj.className = "on";
		//document.getElementsByTagName("a").className = "on";
		break;
	case "2" :
		location.href = "/union_2.asp";
		break;
	case "3" :
		location.href = "/union_3.asp";		
		break;
	case "4" :
		location.href = "/union_4.asp";
		break;
	case "5" :
		location.href = "/union_5.asp";
		break;
	case "6" :
		location.href = ".asp";
		break;
	}
} 

/* 
var tabobja = document.getElementById("serverlayer");
var layertag = tabobja.getElementsByTagName("a");
	 
	
	for(i=0 ; i<layertag.length ; i++){	
	
		layertag[i].onclick =  function () { 				
			 
			 alert(i);
			 
				switch (i){
					case "0" :	
					location.href = "union_2.asp";
					break;	
					
					case "1" :	
					location.href = "union_2.asp";
					break;	
					
					case "2" :	
					location.href = "union_2.asp";
					break;	
					
					case "3" :	
					location.href = "union_2.asp";
					break;	
					
					case "4" :	
					location.href = "union_2.asp";
					break;	
				}
		  
			
		}
	
	
	}
	 
*/