function inform(magnifier)//只有放大縮小
{
                

      		document.form1.aaa.value= magnifier;
           
       butten_color(magnifier) ;
           
}

function butten_color(magnifier)
{
	document.body.focus();  //超連結完後不會有虛線框
	//colorOn="images/butten/img_gauge_on0.gif";
	colorOff="images/butten/img_gauge_off.gif";
	switch (magnifier){
		     case 1:
		 			document.butten1.src="images/butten/img_gauge_on02.gif";
		 			document.butten2.src=colorOff
		 			document.butten3.src=colorOff
		 			document.butten4.src=colorOff
		 			document.butten5.src=colorOff
		 			document.butten6.src=colorOff
		 			document.butten7.src=colorOff
		 			document.butten8.src=colorOff
		 			document.butten9.src=colorOff
					 break;
		   	 case 2:
		  			document.butten1.src="images/butten/img_gauge_on02.gif";
		 			document.butten2.src="images/butten/img_gauge_on02.gif";
		 			document.butten3.src=colorOff
		 			document.butten4.src=colorOff
		 			document.butten5.src=colorOff
		 			document.butten6.src=colorOff
		 			document.butten7.src=colorOff
		 			document.butten8.src=colorOff
		 			document.butten9.src=colorOff
		 			 break;
		   	 case 3:
		   			document.butten1.src="images/butten/img_gauge_on02.gif";
		 			document.butten2.src="images/butten/img_gauge_on02.gif";
		 			document.butten3.src="images/butten/img_gauge_on03.gif";
		 			document.butten4.src=colorOff
		 			document.butten5.src=colorOff
		 			document.butten6.src=colorOff
		 			document.butten7.src=colorOff
		 			document.butten8.src=colorOff
		 			document.butten9.src=colorOff
		   			break;
		   	 case 4:
		   		document.butten1.src="images/butten/img_gauge_on02.gif";
		 			document.butten2.src="images/butten/img_gauge_on02.gif";
		 			document.butten3.src="images/butten/img_gauge_on03.gif";
		 			document.butten4.src="images/butten/img_gauge_on04.gif";
		 			document.butten5.src=colorOff
		 			document.butten6.src=colorOff
		 			document.butten7.src=colorOff
		 			document.butten8.src=colorOff
		 			document.butten9.src=colorOff
		   			break;
		   	 case 5:
		  			document.butten1.src="images/butten/img_gauge_on02.gif";
		 			document.butten2.src="images/butten/img_gauge_on02.gif";
		 			document.butten3.src="images/butten/img_gauge_on03.gif";
		 			document.butten4.src="images/butten/img_gauge_on04.gif";
		 			document.butten5.src="images/butten/img_gauge_on05.gif";
		 			document.butten6.src=colorOff
		 			document.butten7.src=colorOff
		 			document.butten8.src=colorOff
		 			document.butten9.src=colorOff
		  			break;
		   	 case 6:
		   		document.butten1.src="images/butten/img_gauge_on02.gif";
		 			document.butten2.src="images/butten/img_gauge_on02.gif";
		 			document.butten3.src="images/butten/img_gauge_on03.gif";
		 			document.butten4.src="images/butten/img_gauge_on04.gif";
		 			document.butten5.src="images/butten/img_gauge_on05.gif";
		 			document.butten6.src="images/butten/img_gauge_on06.gif";
		 			document.butten7.src=colorOff
		 			document.butten8.src=colorOff
		 			document.butten9.src=colorOff
		  			break;
		   	 case 7:
		  			document.butten1.src="images/butten/img_gauge_on02.gif";
		 			document.butten2.src="images/butten/img_gauge_on02.gif";
		 			document.butten3.src="images/butten/img_gauge_on03.gif";
		 			document.butten4.src="images/butten/img_gauge_on04.gif";
		 			document.butten5.src="images/butten/img_gauge_on05.gif";
		 			document.butten6.src="images/butten/img_gauge_on06.gif";
		 			document.butten7.src="images/butten/img_gauge_on07.gif";
		 			document.butten8.src=colorOff
		 			document.butten9.src=colorOff
		 				 break;
		   	 case 8:
		   		document.butten1.src="images/butten/img_gauge_on02.gif";
		 			document.butten2.src="images/butten/img_gauge_on02.gif";
		 			document.butten3.src="images/butten/img_gauge_on03.gif";
		 			document.butten4.src="images/butten/img_gauge_on04.gif";
		 			document.butten5.src="images/butten/img_gauge_on05.gif";
		 			document.butten6.src="images/butten/img_gauge_on06.gif";
		 			document.butten7.src="images/butten/img_gauge_on07.gif";
		 			document.butten8.src="images/butten/img_gauge_on08.gif";
		 			document.butten9.src=colorOff
		  			break;
		   	 case 9:
		   		document.butten1.src="images/butten/img_gauge_on02.gif";
		 			document.butten2.src="images/butten/img_gauge_on02.gif";
		 			document.butten3.src="images/butten/img_gauge_on03.gif";
		 			document.butten4.src="images/butten/img_gauge_on04.gif";
		 			document.butten5.src="images/butten/img_gauge_on05.gif";
		 			document.butten6.src="images/butten/img_gauge_on06.gif";
		 			document.butten7.src="images/butten/img_gauge_on07.gif";
		 			document.butten8.src="images/butten/img_gauge_on08.gif";
		 			document.butten9.src="images/butten/img_gauge_on09.gif";
		        break;
			}
	
}

//縮小---magnifier(放大鏡)
function down()
{
	document.body.focus();  //超連結完後不會有虛線框
	var magnifier;
	magnifier=eval(document.form1.aaa.value);
	if (magnifier > 1){
		magnifier=magnifier-1;
		
			}
		
		document.form1.aaa.value=magnifier;
    upanddown(magnifier);
}
//放大
function up()
{	
	
	document.body.focus();  //超連結完後不會有虛線框
	var magnifier;
	magnifier=eval(document.form1.aaa.value);
	
	if (magnifier < 9){
		magnifier=magnifier+1;
	document.form1.aaa.value=magnifier;
			}
		
		upanddown(magnifier);
		
}
//放大及縮小
function upanddown(magnifier)
{
	document.body.focus();  //超連結完後不會有虛線框
	//document.form1.aaa.value=magnifier;
	butten_color(magnifier) ;
	switch (magnifier){
		     case 1:
		 			map.setZoom(1,5);
					 break;
		   	 case 2:
		  		 map.setZoom(1,13);
		 			 break;
		   	 case 3:
		   			map.setZoom(2,4);
		   			break;
		   	 case 4:
		   			map.setZoom(2,6);
		   			break;
		   	 case 5:
		  			map.setZoom(3,10);
		  			break;
		   	 case 6:
		   			map.setZoom(3,15);
		  			break;
		   	 case 7:
		  			 map.setZoom(4,5);
		 				 break;
		   	 case 8:
		   			map.setZoom(4,7);
		  			break;
		   	 case 9:
		   			map.setZoom(4,9);
		        break;
			}
	
}