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];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function JustSoPicWindow(imageName,imageWidth,imageHeight,alt,bgcolor,hugger,hugMargin) {
// by E Michael Brandt of ValleyWebDesigns.com - Please leave these comments intact.
// version 3.0.4  

	if (bgcolor=="") {
		bgcolor="#FFFFFF";
	}
	var adj=10
	var w = screen.width;
	var h = screen.height;
	var byFactor=1;

	if(w<740){
	  var lift=0.90;
	}
	if(w>=740 & w<835){
	  var lift=0.91;
	}
	if(w>=835){
	  var lift=0.93;
	}
	if (imageWidth>w){	
	  byFactor = w / imageWidth;			
	  imageWidth = w;
	  imageHeight = imageHeight * byFactor;
	}
	if (imageHeight>h-adj){
	  byFactor = h / imageHeight;
	  imageWidth = (imageWidth * byFactor);
	  imageHeight = h; 
	}
	   
	var scrWidth = w-adj;
	var scrHeight = (h*lift)-adj;

	if (imageHeight>scrHeight){
  	  imageHeight=imageHeight*lift;
	  imageWidth=imageWidth*lift;
	}

	var posLeft=0;
	var posTop=0;

	if (hugger == "hug image"){
	  if (hugMargin == ""){
	    hugMargin = 0;
	  }
	  var scrHeightTemp = imageHeight - 0 + 2*hugMargin;
	  if (scrHeightTemp < scrHeight) {
		scrHeight = scrHeightTemp;
	  } 
	  var scrWidthTemp = imageWidth - 0 + 2*hugMargin;
	  if (scrWidthTemp < scrWidth) {
		scrWidth = scrWidthTemp;
	  }
	  
	  if (scrHeight<100){scrHeight=100;}
	  if (scrWidth<100){scrWidth=100;}

	  posTop =  ((h-(scrHeight/lift)-adj)/2);
	  posLeft = ((w-(scrWidth)-adj)/2);
 	}

	if (imageHeight > (h*lift)-adj || imageWidth > w-adj){
		imageHeight=imageHeight-adj;
		imageWidth=imageWidth-adj;
	}
	posTop = parseInt(posTop);
	posLeft = parseInt(posLeft);		
	scrWidth = parseInt(scrWidth); 
	scrHeight = parseInt(scrHeight);
	
	var agt=navigator.userAgent.toLowerCase();
	if (agt.indexOf("opera") != -1){
	  var args= new Array();
	  args[0]='parent';
	  args[1]=imageName;
	  var i ; document.MM_returnValue = false;
	  for (i=0; i<(args.length-1); i+=2) eval(args[i]+".location='"+args[i+1]+"'");
	} else {
	newWindow = window.open("vwd_justso.htm","newWindow","width="+scrWidth+",height="+scrHeight+",left="+posLeft+",top="+posTop);
	newWindow.document.open();
	newWindow.document.write('<html><title>'+alt+'</title><body leftmargin="0" topmargin="0" marginheight="0" marginwidth="0" bgcolor='+bgcolor+' onBlur="self.close()" onClick="self.close()">');  
	newWindow.document.write('<table width='+imageWidth+' border="0" cellspacing="0" cellpadding="0" align="center" height='+scrHeight+' ><tr><td>');
	newWindow.document.write('<img src="'+imageName+'" width='+imageWidth+' height='+imageHeight+' alt="Click screen to close" >'); 
	newWindow.document.write('</td></tr></table></body></html>');
	newWindow.document.close();
	newWindow.focus();
	}
}

function MM_goToURL() { //v3.0
  var i, args=MM_goToURL.arguments; document.MM_returnValue = false;
  for (i=0; i<(args.length-1); i+=2) eval(args[i]+".location='"+args[i+1]+"'");
}

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

function GetData(RType,KeyData){
	xmlhttp = new ActiveXObject('Microsoft.XMLHTTP');
	var strURL='_ajax.asp?RType=' + RType + '&KeyData=' + KeyData;
	xmlhttp.open('POST',strURL,false);
	//xmlhttp.Send('&RType=' + RType + '&KeyData=' + KeyData);
	xmlhttp.Send(null);
	var rc=xmlhttp.responseText;
	return rc;
}

function RmOption(RType){
	var sltx=window.document.getElementById(RType);
	//移除下一皆的各選項
	var oOption;
	var ooptcnt=sltx.options.length;
	for(var ii=1;ii<ooptcnt;ii++)
	{
		sltx.options[1].removeNode(true);
	}
}


function GenSlt(RType,rc){
	RmOption(RType);
	var sltx=window.document.getElementById(RType);
	//移除下一皆的各選項
	//判斷是否為空值
	if(rc.indexOf("|") > 0){ 		
	//split資料
	var rca=rc.split(',');
	//加入資料選項

	for(var idx=0;idx<rca.length;idx++)
	{
		oOption=window.document.createElement('OPTION');
		sltx.options.add(oOption);

		oOption.innerText=rca[idx].split('|')[1];
		oOption.value=rca[idx];
		}
	}
}


function sltCity_onchange() {
	if(window.event.srcElement.value!='')
	{
	//設定傳回Server資料
		var KeyData;
		KeyData=window.document.form1.Class1.value;
	
		//呼叫xmlhttp啟動Server程式
		var rc=GetData('Class2',KeyData);
	
	
		//產生下一階查詢
		GenSlt('Class2',rc);
	}
	else
	{
		RmOption('Class2');	
	}

	/*移除路、號、郵遞區號
	RmOption('Class3');
	RmOption('Num');
	window.document.form1.Class3.value='';*/
}

function sltArea_onchange() {
	if(window.event.srcElement.value!='')
	{
		//設定傳回Server資料
		var KeyData;
		KeyData= window.document.form1.Class1.value + ',' + window.document.form1.Class2.value;

		//呼叫xmlhttp啟動Server程式
		var rc=GetData('Class3',KeyData);

		//產生下一階查詢
		GenSlt('Class3',rc);
	}
	else
	{
		RmOption('Class3');
	}
}

<!-- 
function view_ans(num) { 
if(document.getElementById("ans" + num).style.display == "none") { 
document.getElementById("ans" + num).style.display = "block"; 
} else if(document.getElementById("ans" + num).style.display == "block") { 
document.getElementById("ans" + num).style.display = "none"; 
} 
} 

function close_ans(num) {
if(document.getElementById("ans" + num).style.display == "block")
{
document.getElementById("ans" + num).style.display = "none";
}
}
//--> 