function include(src) {
	HTMLCode = '<script language="javascript" src="' + src + '"></script>';
	document.write(HTMLCode);
}


Util = new Object();

Util.createUniqueID = function(prefix) {
    if (prefix == null) {
        prefix = "id_";
    }
    return prefix + Math.round(Math.random() * 10000000);        
};

Util.getValueOfNoPX = function(valueString){
	if(!valueString)
	    return ;
	if (valueString.indexOf("px")) {
		var i = valueString.indexOf("px");
		return Number(valueString.substring(0, i));
	}
	return Number(valueString);
}

Util.getRealMapWidth = function(fullExtent){
    return Util.distanceByLnglat(fullExtent.getMinX()/1e16,fullExtent.getMaxY()/1e16,fullExtent.getMaxX()/1e16,fullExtent.getMaxY()/1e16);
}

Util.getRealMapHeight = function(fullExtent){
    return Util.distanceByLnglat(fullExtent.getMinX()/1e16,fullExtent.getMinY()/1e16,fullExtent.getMinX()/1e16,fullExtent.getMaxY()/1e16);
}

Util.getRealMapBound = function(fullExtent, level){
    //获取当前级别地图的比例尺
    var scale  = Util.zoomScale(level);    
		
    var xmin = fullExtent.getMinX()/1e16;
    var xmax = fullExtent.getMaxX()/1e16;
    var ymin = fullExtent.getMinY()/1e16;
    var ymax = fullExtent.getMaxY()/1e16;
    
    //瓦片的长度
    var tileWidth = TileSize/96*2.54*scale/100;        
    var cols = Util.getRealMapWidth(fullExtent)/tileWidth; // double
    var rows = (ymax - ymin)/((xmax - xmin)/cols);
    xmax = (xmax-xmin)/cols*Math.ceil(cols)+xmin;
    ymin = ymax -(ymax-ymin)/rows*Math.ceil(rows);
    return new Bound(xmin*1e16, xmax*1e16, ymin*1e16, ymax*1e16);  
}
//通过经纬度坐标计算距离
Util.distanceByLnglat = function(lng1,lat1,lng2,lat2){
    var radLat1 = Util.Rad(lat1);
    var radLat2 = Util.Rad(lat2);
    var a = radLat1 - radLat2;
    var b = Util.Rad(lng1) - Util.Rad(lng2);
    var s = 2 * Math.asin(Math.sqrt(Math.pow(Math.sin(a / 2), 2) + Math.cos(radLat1) * Math.cos(radLat2) * Math.pow(Math.sin(b / 2), 2)));
    s = s * 6378137.0;// 取WGS84标准参考椭球中的地球长半径(单位:m)
    s = Math.round(s * 10000) / 10000;
    return s;
}

Util.Rad = function(d){
    return d * Math.PI / 180.0;
}
//比例尺
Util.zoomScale = function(level){
    var scale;
    switch(level)
    {
        case 1:
            scale = '5000000';
            break;
        case 2:
            scale = '3400000';
            break;
        case 3:
            scale = '2000000';
            break;
        case 4:
            scale = '1000000';
            break;
        case 5:
            scale = '800000';
            break;
        case 6:
            scale = '500000';
            break;
        case 7:
            scale = '250000';
            break;
        case 8:
            scale = '100000';       
            break;	
        case 9:
            scale = '50000';       
            break;
        case 10:
            scale = '25000';       
            break;	        
        default:
            scale = -1;
            break;
    }
    return scale;
}


Util.createDiv = function(id,left,top,width,height,img,position,border,opacity){
    if(document.getElementById(id)){
    	return document.getElementById(id);
    }
    var e = document.createElement('div');
    if(id)
        e.id = id ;
    
    if(left)
        e.style.left = parseInt(left) + "px";
    if(top)        
        e.style.top = parseInt(top) + "px";    
    
    if(width && height){
        e.style.width = parseInt(width) + "px";
        e.style.height = parseInt(height) + "px";
    }
    if(img)
        e.appendChild(Util.createImg(id+'_Img',5,5,null,null,img,'relative'));
        
    if(position)
        e.style.position = position ;
    if (border)
        e.style.border = border;
            
    if (opacity) {
        e.style.opacity = opacity;
        e.style.filter = 'alpha(opacity=' + (opacity * 100) + ')';
    }
        
    return e;
};


Util.createImg = function(id, left, top, width, height, imgurl, position, border, opacity, delayDisplay) {

    image = document.createElement("img");

    if(delayDisplay) {
        image.style.display = "none";
        Event.observe(image, "load", Util.onImageLoad.bindAsEventListener(image));
        Event.observe(image, "error",Util.onImageLoadError.bindAsEventListener(image));        
    }
    
    image.style.alt = id;
    image.galleryImg = "no";
    if (imgurl) 
        image.src = imgurl;    
    
    if (!position) 
        position = "relative";
    
    if(id)
        image.id = id;
    
    if(left)
        image.style.left = parseInt(left) + "px";
    if(top)        
        image.style.top = parseInt(top) + "px";
    
    if(width && height){
        image.style.width = parseInt(width) + "px";
        image.style.height = parseInt(height) + "px";
    }
    
    if(position)
        image.style.position = position ;
        
    if (border)
        image.style.border = border;
            
    if (opacity) {
        image.style.opacity = opacity;
        image.style.filter = 'alpha(opacity=' + (opacity * 100) + ')';
    }
        
    return image;
}


Util.setElementStyle = function(element, id, left, top, width, height, position, border, overflow, opacity) {

    if (id) {
        element.id = id;
    }
    
    if(left)
        element.style.left = parseInt(left) + "px";
    if(top)        
        element.style.top = parseInt(top) + "px";
        
    if(width && height){
        element.style.width = parseInt(width) + "px";
        element.style.height = parseInt(height) + "px";
    }
    if (position) {
        element.style.position = position;
    }
    if (border) {
        element.style.border = border;
    }
    if (overflow) {
        element.style.overflow = overflow;
    }
    if (opacity) {
        element.style.opacity = opacity;
        element.style.filter = 'alpha(opacity=' + (opacity * 100) + ')';
    }
};



Util.onImageLoad = function() {
    this.style.backgroundColor = null;
    this.style.display = "";  
};

Util.onImageLoadError = function() {
    this.style.backgroundColor = "pink";
    this.style.display = "";
};


Util.getMousePixel = function(e){
    if(!e) 
		e = window.event;	
	if(!e.pageX) 
		e.pageX = e.clientX;
	if(!e.pageY) 
		e.pageY = e.clientY;
	return {x:e.pageX, y:e.pageY};
};


Util.getMouseRelativePixel = function(e, mapDiv){
    var pixel = Util.getMousePixel(e);
	
    var relDeltaX = pixel.x - Util.getLeft(mapDiv.parentNode) - Util.getValueOfNoPX(mapDiv.style.left);
	var relDeltaY = pixel.y - Util.getTop(mapDiv.parentNode) - Util.getValueOfNoPX(mapDiv.style.top);
	return {x:relDeltaX, y:relDeltaY}
};

Util.getTop = function(obj){
    var t = obj.offsetTop;
	while(obj = obj.offsetParent){
		t += obj.offsetTop;
	}
	return t;
};

Util.getLeft = function(obj){
    var t = obj.offsetLeft;
	while(obj = obj.offsetParent){
		t += obj.offsetLeft;
	}
	return t;
};

//地理坐标转像素坐标
Util.getScreenPixel = function(coord, zoom){
    var sx = (coord.x-zoom.realMapBound.getMinX()) * ((zoom.getTileCols() * TileSize)/zoom.realMapBound.getWidth());
    var sy = (zoom.realMapBound.getMaxY()-coord.y) * ((zoom.getTileRows() * TileSize)/zoom.realMapBound.getHeight());
    return {x:sx, y:sy}
}
//像素坐标转地理坐标
Util.getCoordinateByPixel = function(pixel, zoom){
	var x = zoom.realMapBound.getMinX() + pixel.x * (zoom.realMapBound.getWidth()/(zoom.getTileCols() * TileSize));
	var y = zoom.realMapBound.getMaxY() - pixel.y * (zoom.realMapBound.getHeight()/(zoom.getTileRows() * TileSize));
	return new Coordinate(x, y);
};


Util.getRealCoordinate = function(coordinate){

	var mapDiv = $("map");   
    var relDeltaX = pixel.x - Util.getLeft(mapDiv.parentNode) - Util.getValueOfNoPX(mapDiv.style.left);   
    var relDeltaY = pixel.y - Util.getTop(mapDiv.parentNode) - Util.getValueOfNoPX(mapDiv.style.top);   
	var x = zoom.realMapBound.getMinX() + relDeltaX * (zoom.realMapBound.getWidth()/(zoom.getTileCols() * TileSize));
	var y = zoom.realMapBound.getMaxY() - relDeltaY * (zoom.realMapBound.getHeight()/(zoom.getTileRows() * TileSize));

	return new Coordinate(x, y);
};

//为防止花屏，取得修正值，有个bug，拖过了就没了，重新zoom就没事
Util.getXzlocation = function(loc){
	if(loc<0){
		loc=-loc;
	}
	if(loc>1000000){
		//alert(Math.floor(loc-1000000));
		return Math.floor(loc-1000000);
	}
	//alert("0");
	return 0;
}

//************************bq后加

//根据标记的相对坐标得到经纬度
Util.getCoordByPixel = function(x,y) {
	var eventX = FullExtent.getMinX() + (x+map_xzlocation_x) * (FullExtent.getWidth() / (TileSize * map.model.getZoom().tileCols));
	var eventY = FullExtent.getMaxY() - (y+map_xzlocation_y) * (FullExtent.getHeight() / (TileSize * map.model.getZoom().tileRows));
	return new Coordinate(eventX/1e16, eventY/1e16);
}

//得到鼠标点击的象素坐标
Util.getEventCoord = function(e, mapModel) {
	var mouseoffset = Util.getMousePixel(e);
	var mapDiv = $("map_" + mapModel.getId());
	
	//要把滚动条的原因考虑到，否则会偏，同时加上了修正
	var relativeOffsetX = mouseoffset.x+map_xzlocation_x - Util.getLeft(mapDiv.parentNode)+getScrollLeft() - Util.getValueOfNoPX(mapDiv.style.left);
	var relativeOffsetY = mouseoffset.y+map_xzlocation_y - Util.getTop(mapDiv.parentNode)+ getScrollTop() - Util.getValueOfNoPX(mapDiv.style.top);

	var eventX = FullExtent.getMinX() + relativeOffsetX * (FullExtent.getWidth() / (TileSize * mapModel.getZoom().tileCols));
	var eventY = FullExtent.getMaxY() - relativeOffsetY * (FullExtent.getHeight() / (TileSize * mapModel.getZoom().tileRows));
	return new Coordinate(eventX/1e16, eventY/1e16);
}



//得到滚动条滚动了多少
function getScrollTop() {    
    var scrollPos = 0;     
    if (typeof window.pageYOffset != 'undefined') {     
       scrollPos = window.pageYOffset;     
    }     
    else if (typeof window.document.compatMode != 'undefined' &&     
       window.document.compatMode != 'BackCompat') {     
       scrollPos = window.document.documentElement.scrollTop;     
    }     
    else if (typeof window.document.body != 'undefined') {     
       scrollPos = window.document.body.scrollTop;     
    }     
    return scrollPos;    
}
function getScrollLeft() {    
    var scrollPos = 0;     
    if (typeof window.pageXOffset != 'undefined') {     
       scrollPos = window.pageXOffset;     
    }     
    else if (typeof window.document.compatMode != 'undefined' &&     
       window.document.compatMode != 'BackCompat') {     
       scrollPos = window.document.documentElement.scrollLeft;     
    }     
    else if (typeof window.document.body != 'undefined') {     
       scrollPos = window.document.body.scrollLeft;     
    }     
    return scrollPos;    
}  

/**
 * 得到鼠标事件位置
 */
function documentCoord(e) {
	var coord = {};
	if(!e) {
		e = window.event;
	}
	if(!e.pageX) {
		e.pageX = e.clientX;
	}
	if(!e.pageY) {
		e.pageY = e.clientY;
	}
	coord.x = e.pageX;
	coord.y = e.pageY;
	return coord;
}




//************************bq后加



var state = 1 ;	
var orgLeft = 0;
var orgTop = 0;
var deltaX = 0;
var deltaY = 0;
var timer = null;

function setCurPos(left, top){
    orgLeft = left;
    orgTop = top;
}

function slide(layerId, w, h, img){
    var containerW = Util.getValueOfNoPX($(layerId).parentNode.style.width);
    var containerH = Util.getValueOfNoPX($(layerId).parentNode.style.height);
    
    if(state == 1){
        state = 0 ;
        var rate = 200/190;
        fly(layerId, containerW, containerH, 20, rate);
        img.src = ImageBaseDir + '2.GIF'
    }	    
    else {
        state = 1 ;
        var rate = 190/200;
        fly(layerId, containerW-w, containerH-h, 20, rate);
        img.src = ImageBaseDir + '1.GIF';
    }	
}	
function fly(layerId, left, top, speed, speedRate){
    wSpeed = (Math.max(orgLeft, left) - Math.min(orgLeft, left))/(speed) ;
    hSpeed = (Math.max(orgTop, top) - Math.min(orgTop, top))/(speed*speedRate);
    move(layerId, wSpeed, hSpeed, left, top) ;
}	
function move(layerId, wSpeed, hSpeed, left, top){
    clearTimeout(timer) ;        
    if(orgLeft != left){
        if((Math.max(orgLeft, left) - Math.min(orgLeft, left)) < wSpeed)
            orgLeft = left ;
        else if(orgLeft < left)
            orgLeft = orgLeft + wSpeed;
        else if(orgLeft > left)
            orgLeft = orgLeft - wSpeed;            
        $(layerId).style.left = orgLeft;	        
    }        
    if(orgTop != top){
        if((Math.max(orgTop, top) - Math.min(orgTop, top)) < hSpeed)
            orgTop = top
        else if(orgTop < top)
            orgTop = orgTop + hSpeed
	    else if(orgTop > top)
	        orgTop = orgTop - hSpeed    		
	    $(layerId).style.top = orgTop
    }	
    
    timer = setTimeout('move("'+layerId+'",'+wSpeed+','+hSpeed+','+left+','+top+')',30);
};

function MM_swapImgRestore() { 
  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_swapImage() { 
  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=$(a[i]))!=null){
          document.MM_sr[j++]=x; 
          if(!x.oSrc) 
            x.oSrc=x.src; 
          x.src=a[i+2];
      }
}



/** 判断浏览器类型 */
function isIE() {
	if (navigator.appName!="Microsoft Internet Explorer") {
		return false;
	}
	return true;
}