function MM_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);

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_showHideLayers() { //v6.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v=='hide')?'hidden':v; }
    obj.visibility=v; }
}

var offsetfrommouse=[15,25]; //image x,y offsets from cursor position in pixels. Enter 0,0 for no offset
var displayduration=0; //duration in seconds image should remain visible. 0 for always.

var defaultimageheight = 40;	// maximum image size.
var defaultimagewidth = 40;	// maximum image size.

var timer;

function gettrailobj(){
if (document.getElementById)
return document.getElementById("preview_div").style
}

function gettrailobjnostyle(){
if (document.getElementById)
return document.getElementById("preview_div")
}


function truebody(){
return (!window.opera && document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body
}


function hidetrail(){	
	gettrailobj().display= "none";
	document.onmousemove=""
	gettrailobj().left="-500px"
	clearTimeout(timer);
}

function showtrail(imagename,title,content,width,height){
	i = imagename
	t = title
	c = content
	w = width
	h = height
	
	timer = setTimeout("show('"+i+"',t,c,w,h);",200);
}
function show(imagename,title,content,width,height){
 
    var docwidth=document.all? truebody().scrollLeft+truebody().clientWidth : pageXOffset+window.innerWidth - offsetfrommouse[0]
	var docheight=document.all? Math.min(truebody().scrollHeight, truebody().clientHeight) : Math.min(window.innerHeight)

	if( (navigator.userAgent.indexOf("Konqueror")==-1  || navigator.userAgent.indexOf("Firefox")!=-1 || (navigator.userAgent.indexOf("Opera")==-1 && navigator.appVersion.indexOf("MSIE")!=-1)) && (docwidth>650 && docheight>500)) {
		( width == 0 ) ? width = defaultimagewidth: '';
		( height == 0 ) ? height = defaultimageheight: '';
			
		width+=30
		height+=55
		defaultimageheight = height
		defaultimagewidth = width
	
		document.onmousemove=followmouse; 

		
		newHTML = '<div class="border_preview" style="width:'+  width +'px;height:'+ height +'px"><div id="loader_container"><div id="loader"><div align="center">Loading template preview...</div><div id="loader_bg"><div id="progress"> </div></div></div></div>';
		newHTML = newHTML + '<h2 class="title_h2">' + ' '+title + '</h2>'
    	newHTML = newHTML + '<div class="preview_temp_load"><img onload="javascript:remove_loading();" src="' + imagename + '" border="0"></div>';
    	newHTML = newHTML + '<div align="left">' + ' '+content +  '</div>';
		newHTML = newHTML + '</div>'; 
		
		if(navigator.userAgent.indexOf("MSIE")!=-1 && navigator.userAgent.indexOf("Opera")==-1 ){
			newHTML = newHTML+'<iframe src="about:blank" scrolling="no" frameborder="0" width="'+width+'" height="'+height+'"></iframe>';
		}		

		gettrailobjnostyle().innerHTML = newHTML;
		gettrailobj().display="block";
	}
}

function followmouse(e){

	var xcoord=offsetfrommouse[0]
	var ycoord=offsetfrommouse[1]

	var docwidth=document.all? truebody().scrollLeft+truebody().clientWidth : pageXOffset+window.innerWidth-15
	var docheight=document.all? Math.min(truebody().scrollHeight, truebody().clientHeight) : Math.min(window.innerHeight)

	if (typeof e != "undefined"){
		if (docwidth - e.pageX < defaultimagewidth + 2*offsetfrommouse[0]){
			xcoord = e.pageX - xcoord - defaultimagewidth; // Move to the left side of the cursor
		} else {
			xcoord += e.pageX;
		}
		if (docheight - e.pageY < defaultimageheight + 2*offsetfrommouse[1]){
			ycoord += e.pageY - Math.max(0,(2*offsetfrommouse[1] + defaultimageheight + e.pageY - docheight - truebody().scrollTop));
		} else {
			ycoord += e.pageY;
		}

	} else if (typeof window.event != "undefined"){
		if (docwidth - event.clientX < defaultimagewidth + 2*offsetfrommouse[0]){
			xcoord = event.clientX + truebody().scrollLeft - xcoord - defaultimagewidth; // Move to the left side of the cursor
		} else {
			xcoord += truebody().scrollLeft+event.clientX
		}
		if (docheight - event.clientY < (defaultimageheight + 2*offsetfrommouse[1])){
			ycoord += event.clientY + truebody().scrollTop - Math.max(0,(2*offsetfrommouse[1] + defaultimageheight + event.clientY - docheight));
		} else {
			ycoord += truebody().scrollTop + event.clientY;
		}
	}
	gettrailobj().left=xcoord+"px"
	gettrailobj().top=ycoord+"px"

}

var t_id = setInterval(animate,20);
var pos=0;
var dir=2;
var len=0;

function animate()
{
var elem = document.getElementById('progress');
if(elem != null) {
if (pos==0) len += dir;
if (len>32 || pos>79) pos += dir;
if (pos>79) len -= dir;
if (pos>79 && len==0) pos=0;
elem.style.left = pos;
elem.style.width = len;
}
}

function remove_loading() {
this.clearInterval(t_id);
var targelem = document.getElementById('loader_container');
targelem.style.display='none';
targelem.style.visibility='hidden';
var t_id = setInterval(animate,60);
}



function images_resize(view_image , hide_image , maxWidth , maxHeight){
    hide_image.style.display = "";
    hide_image.style.visibility = "hidden";

    if (hide_image.src != ""){    //显示图片
        view_image.src = hide_image.src;

        if (hide_image.width/hide_image.height > maxWidth/maxHeight){       //这里数字是图片长宽最大值的并差值
            if (hide_image.width > maxWidth){
                view_image.width = maxWidth;
                view_image.height = maxWidth* (hide_image.height/hide_image.width);
            }else{
                view_image.width = hide_image.width;
                view_image.height = hide_image.height;
            }
        }else{
            if (hide_image.height > maxHeight){
                view_image.height = maxHeight;
                view_image.width  = (hide_image.width/hide_image.height) * maxHeight;
            }else {
                view_image.width = hide_image.width;
                view_image.height = hide_image.height;
            }
        }

        view_image.style.display = "";
    }
    hide_image.style.display = "none";
}

function ShowMessage(n){
			document.getElementById(n).className = "DisplayShow"
}
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 isInt(str,bEmpty)
	{
		if(str==null||trim(str)=="")
		{
			return bEmpty;
		}	
	
	  if(trim(str) == "0")
	  {
	    return false;
	  }
	  
		var ch = str.substring(0,1);
		
		if (ch == "0" && trim(str) != "0")
		{
			return false;
		}
		
		for (var i=0; i<str.length ; i++)
		{
			var s = str.substring(i, i+1);
			if (!(s >= "0" && s <="9"))
			{
				return false;
			}
		}
		return true;
	}
	
	function isFloat(checkstr, bEmpty, tcount)
	{
		if(checkstr==null||trim(checkstr)=="")
		{
			return bEmpty;
		}	
	
		var str	= trim(checkstr);
		if(str.substring(0,1)==".")
		{
			return false;		
		}
		var temp=0;
		for(var i=0;i<str.length;i++)
		{
			var ch=str.substring(i,i+1);		
			if(!((ch>="0" && ch<="9") || ch=="."))
			{
				return false;		
			}
			if(ch==".")
				temp++;
			if(temp>1)
			{
				return false;		
			}
		}	
			
		if(tcount != null && tcount > 0)
		{
			if(str.indexOf(".") != -1 && str.length - (str.indexOf(".")+1) > tcount)
			{				
				return false;
			}	
		}
						
		var start1 = checkstr.substring(0,1);
		var start2 = checkstr.substring(1,2);
		if(start1 == 0 && start2!=".")
		{
		    for(var i=0;i<str.length;i++)
		    {
		     var ch=str.substring(i,i+1);
		     if (ch==0)
		     temp++;
		     }
		   if (temp == str.length)
		    {
		      return true;
		    }
		    return false;
		  }
		
		
		return true;
	}
	
	function isNumber(str,bEmpty)
	{
		if(str==null||trim(str)=="")
		{
			return bEmpty;
		}
	
		for (var i=0; i<str.length ; i++)
		{
			var s = str.substring(i, i+1);
			if (!(s >= "0" && s <="9"))
			{
				return false;
			}
		}
		return true;
	}
	
	function isNull(str)
	{
		if (str == null || trim(str) == "")
		{
			return true;
		}
		return false;
	}
	
	function isDate(str,bEmpty)
	{
		if (str == null)
		{
			return bEmpty;
		}
		if (trim(str).length != 10 )
		{
			return false;
		}
		var yearStr = str.substring(0,4);
		if(parseInt(yearStr)<1900)
		{
			return false;
			}
		var reg =  /^[0-9]{4}\-(([0][1-9])||([1][012]))\-(([0][1-9])||([12][0-9])||([3][01]))$/;
		if(!str.match(reg))
		{
			return false;
			}
		return true;
	}
	
	function isEmail(str,bEmpty){
		if (str == null || trim(str) == "")
		{
			return bEmpty;
		}
		
	    //校验邮件的正则表达式，包括aa@bb.cc.dd 和 aa@bb.cc的形式
	    
	    var pattern1 = /^(([\u4E00-\u9FA5]|[\uFE30-\uFEFF]|[\d]|[a-zA-Z]|[\_\-\.])+[\@])(((([\d]|[a-zA-Z]|[\_\-]|[\[\]\{\}\>\<])+[\.])+)([\d]|[a-zA-Z\_\-])+)$/;

	    if(str.match(pattern1) )
			return true;

        return false;
	}
	
	function isTelNo(str,bEmpty)
	{
		if(str==null||trim(str)=="")
			return bEmpty;		
			
    var str	= trim(str);

  	var myphone = /^[\-0-9+()\/]{1,32}$/;
  	if(myphone.test(str)) return true;
  	
  	return false;
  }	
	
	function isASCII(str, bEmpty)
	{ 
		if(str==null||trim(str)=="")
			return bEmpty;		//alert(name+"项：您尚未填写。");
			
		var str	= trim(str);
		
		for (var i = 0; i < str.length; i++) { 
			var ch = str.charAt(i); 
			if (!((ch >= "A" && ch <= "z" ) || (ch >="0" && ch <="9"))) { 
				return false; 
			} 
		} 
		
	    return true; 
	} 

	

	
	//Function trim a string
	function trim(Str , Flag)
	{
	
		Str	= ""+Str;
		if( Flag == "l" || Flag == "L" )/*trim left side only*/
		{
			RegularExp	= /^\s+/gi;
			return Str.replace( RegularExp,"" );
		}
		else if( Flag == "r" || Flag == "R" )/*trim right side only*/
		{
			RegularExp	= /\s+$/gi;
			return Str.replace( RegularExp,"" );
		}
		else/*defautly, trim both left and right side*/
		{
			RegularExp	= /^\s+|\s+$/gi;
			return Str.replace( RegularExp,"" );
		}
	}
	
	function strlen(str)
	{
		str = trim(str);
		var reg = /\r\n/g;
		var str1 = str.replace(reg,""); 
		return str1.length;
	}

function alertHttp(e, m){
    var p = new RegExp(/^((http|https):\/\/+)|(^\/)|(^#$)/gi);
    if(!p.test(e.value)){
        alert(m);
        e.focus();
        return false;
    }
    return true;
}
function alertNull(e, m){
    if(e.value.trim().length == 0){
        alert(m);
        e.focus();
        return false;
    }
	return true;
}
 function toippercase(obj)
{
    obj.value = obj.value.toUpperCase();
 }