function initWdDragHeight(offsetheight, topNum) {

	

	line(offsetheight);

	

	if(true)return



    var reduceHeight = window.innerHeight - document.body.offsetHeight

    var TAGATTRIBUTE = "ssDragh";	// = "wdDragHeight"。Lin



    var iframes = document.querySelectorAll("[" + TAGATTRIBUTE + "]");

    var lines = document.querySelectorAll("#line");

    var maxHeight = (window.innerHeight || window.screen.availHeight) - offsetheight;





    for (var i = 0; i < iframes.length; i++) {

        iframes[i].setHeight = function (v) {

            this.style.height = v + "px";

            this.height = v;

        }

    }



    if(iframes.length>0&&lines.length==0){

        var line_div = document.createElement('div'); // 新增元素

        line_div.className ="content-hSeperator";

        line_div.id = "line";

        line_div.innerHTML = "<img src='wd/js/app/line.png' alt='' />";

        iframes[1].parentNode.insertBefore(line_div, iframes[1]); // 在这个元素前面增加上去

    }



    //抽取top数值与topNum相同iframes。

    if (topNum != null) {

        var temp = [];

        for (var i = 0; i < iframes.length; i++) {

            var array = /top\s*?:\s*?(\d+)/ig.exec(iframes[i].getAttribute(TAGATTRIBUTE))

            if (array != null && array[1] == topNum) {//无top参数并且topNum为1时

                temp.push(iframes[i]);

            }

        }

        iframes = temp

    } else {//topNum为null默认为第一层

        var temp = [];

        for (var i = 0; i < iframes.length; i++) {



            if (!/top\s*?:\s*?(\d+)/ig.test(iframes[i].getAttribute(TAGATTRIBUTE))) {//无top参数并且topNum为1时

                temp.push(iframes[i]);

            } else if (/top\s*?:\s*?1/ig.test(iframes[i].getAttribute(TAGATTRIBUTE))) {

                temp.push(iframes[i]);

            }

        }

        iframes = temp;

    }



    if (iframes.length == 0) return;







    //如果iframes的长度大于0执行自适应



    var usableHeight = 0;

    if (topNum == null || topNum < 2) {//第一层的处理，iframes可以适应的高度计算

        usableHeight = reduceHeight;

        for (var i = 0; i < iframes.length; i++) {

            usableHeight += iframes[i].offsetHeight;

        }





        //如果有bjgd数据，优先使用bjgd

        if (offsetheight != null) {

            usableHeight = maxHeight;

        }





    } else {



        var p = findParent(iframes[0], topNum - 1);//查找上一级的自适应元素，用于获取高

        var pWdFitHeight = p.getAttribute(TAGATTRIBUTE);

        var array = /fixHeight\s*?:\s*?(\d+)/ig.exec(pWdFitHeight);

        if (array != null) {

            usableHeight = p.offsetHeight - parseInt(array[1]);

        } else {

            usableHeight = p.offsetHeight;

        }

    }



//  console.log("usableHeight: " + usableHeight);



    //禁止滚动条

    document.body.style.overflow = "hidden";

    var heightArr = [];//存放计算后得到的height百分

    var minHighArr = [];//存放iframe的minHigh

    var maxHighArr = [];//存放iframe的maxHigh

    var currentHeight = 0;//当前百分比

    var hasHeightCount = 0;

    for (var i = 0; i < iframes.length; i++) {

        var wdFitHeight = iframes[i].getAttribute(TAGATTRIBUTE);

        var array = /(\d+)%/.exec(wdFitHeight);

        if (!!array) {

            heightArr[i] = parseInt(array[1]);

            currentHeight += parseInt(array[1]);

            hasHeightCount++;

        }

        array = /min\s*?:\s*?(\d+)/.exec(wdFitHeight)

        if (!!array) {

            minHighArr[i] = parseInt(array[1]);

        }

        array = /max\s*?:\s*?(\d+)/.exec(wdFitHeight)

        if (!!array) {

            maxHighArr[i] = parseInt(array[1]);

        }

    }



    //重新计算heightArr;

    //计算百分比

    if (currentHeight < 100) {

        var a = (100 - currentHeight) / (iframes.length - hasHeightCount);

        for (var i = 0; i < iframes.length; i++) {

            if (!!!heightArr[i]) {

                heightArr[i] = a;

                currentHeight += a;

            }

        }

    }



    var temp = usableHeight;

    //      tip("usableHeight:"+usableHeight,true)

    //min max 限制百分比高度

    for (var i = 0; i < iframes.length; i++) {

        //百分比高度

        var height = usableHeight * heightArr[i] / 100;



        //限定高度最大值

        if (height > temp) {

            height = temp;

            temp = 0;

        } else {

            //最小值

            if (!!minHighArr[i] && minHighArr[i] > height) {

                height = minHighArr[i];



                //最大值

            } else if (!!maxHighArr[i] && maxHighArr[i] < height) {

                height = maxHighArr[i];

            }



            temp -= height;

        }





        //          if(iframes[i].name && iframes[i].name.indexOf('Edit') != -1) {

        //              height -= 107;

        //          }

//      console.log("height:" + height);

        iframes[i].style.height = height + "px";

        //   		iframes[i].setHeight(height);

        //      	var ifr=iframes[i].querySelector("iframe");

        //      	if(ifr){

        //      		ifr.height=height;

        //      		ifr.style.height=height;

        //      	}



    }



    //计算内层wdFitHeight元素

    if (topNum == null) {

        arguments.callee(offsetheight, 2)

    } else {

        arguments.callee(offsetheight, topNum + 1);

    }



    line(offsetheight);





    function findParent(ele, topNum) {

        var cur = ele;

        do {

            cur = cur.parentElement;

            if (cur == null)

                return null;

            if (new RegExp('top\s*?:\s*?' + topNum, 'ig').test(cur.getAttribute(TAGATTRIBUTE))) {

                return cur;

            }

        } while (true);

        return null;

    }

}









//初始化拖动线

function line(offsetheight) {

	

	

	 var iframes = document.querySelectorAll("[ssDragh]");	// ("[" + "wdDragheight" + "]")。Lin

	

	if (iframes.length != 2) return

	

	for (var i = 0; i < iframes.length; i++) {

        iframes[i].setHeight = function (v) {

            this.style.height = v + "px";

            this.height = v;

        }

    }

	

	 var lines = document.querySelectorAll("#line");

    if(iframes.length>0&&lines.length==0){

        var line_div = document.createElement('div'); // 新增元素

        line_div.className ="content-hSeperator";

        line_div.id = "line";

        

        //拖动遮罩层

        var mask="<div class=\"dragmask\" style=\"display:none;position: absolute;width: 70px;height: 70px;top: -35px;right: 0px;\"></div>"

        

//      line_div.innerHTML =mask+ "<span></span>";

        line_div.innerHTML ="<span></span>";

        iframes[1].parentNode.insertBefore(line_div, iframes[1]); // 在这个元素前面增加上去

    }

	

	

    el = document.getElementById("line");

    el.style.zIndex = "99";

   

    var wh = window.innerHeight;

    var lineOneHeight = el.offsetHeight;



    



    iframes[0].style.display = "block";

    iframes[1].style.display = "block";



    var maxHeight = document.body.offsetHeight - offsetheight;



    var topDiv = iframes[0];

    var bottomDiv = iframes[1];

//  console.log(window.getComputedStyle(el).height);

    //减少怎加线导致总高度问题

    bottomDiv.style.height=parseInt(bottomDiv.style.height)-parseInt(window.getComputedStyle(el).height);

    

    //  topDiv.innerHTML = window.screen.availHeight+' '+ document.body.offsetHeight; 

//  bottomDiv.style.height = maxHeight - topDiv.offsetHeight - 40 + 'px';

//  console.log(bottomDiv.offsetHeight);



//	topDiv.style.maxHeight=parseInt( bottomDiv.style.height)+parseInt( topDiv.style.height);

//	bottomDiv.style.maxHeight=parseInt( bottomDiv.style.height)+parseInt( topDiv.style.height);



    //PC端的变量

    var start_Y;

    var top_Height;

    var middle_Height;

    var starty = 0;

    var topStartHeight = 0;

    var bottomStartHeight = 0;

	var dragmask=el.querySelector(".dragmask");

    var ismousedown = false;

    el.onmousedown = function (e) {

        ismousedown = true;

        e.preventDefault();

        starty = e.screenY;

//      topStartHeight = parseInt(topDiv.offsetHeight) || 50;

//      bottomStartHeight = parseInt(bottomDiv.offsetHeight) || 50;

		topStartHeight = parseInt(topDiv.style.height) || 0;

        bottomStartHeight = parseInt(bottomDiv.style.height) || 0;

        if(dragmask){

        	dragmask.style.display="";

        }

        

    }

    document.onmouseup = function (e) {

        ismousedown = false;

        wd.display.initWdFitHeight(window);

        

        if(dragmask){

        	dragmask.style.display="none";

        }

        

    }

    document.onmousemove = function (e) {

        e = e || window.event;

        if(ismousedown&&e.which ==0){

            ismousedown = false;

//          wd.display.initWdFitHeight(window);

        }

        if (ismousedown) {

            e.preventDefault();

            var pageY = e.screenY;



//          var topDivHeight = topStartHeight + (pageY - starty);

//          var bottomDivHeight = maxHeight - topDivHeight - 2;

			

            var topDivHeight = topStartHeight + (pageY - starty);

            var bottomDivHeight = bottomStartHeight - (pageY - starty);

            

//          console.log(topDivHeight+" "+bottomDivHeight)

            if (topDivHeight < 0 || bottomDivHeight < 0) {

                ismousedown = false;

//              wd.display.initWdFitHeight(window);

                return;

            }

            topDiv.style.height = topDivHeight + "px";

            bottomDiv.style.height = bottomDivHeight + "px";

            //console.log(e.which);

        }

    }

    // el.addEventListener('mousedown', pcLineOneStart, false);

    // /****

    //      PC端的处理

    // ****/

    // function pcLineOneStart(e) {

    //     e.preventDefault();

    //     starty = e.screenY;

    //     document.addEventListener('mousemove', pcLineOneMove, false);

    //     el.addEventListener('mouseup', pcLineOneEnd, false);



    //     topStartHeight = parseInt(topDiv.offsetHeight) || 50;

    //     bottomStartHeight = parseInt(bottomDiv.offsetHeight) || 50;

    // }



    // function pcLineOneMove(e) {

    //     e.preventDefault();



    //     var pageY = e.screenY;

    //     // //  if(pageY>= (maxHeight - 20) || pageY < 10  )return

    //     // if (pageY >= (maxHeight - 20)) {

    //     //     topDiv.style.height = maxHeight - 20 + 'px';

    //     //     return

    //     // } else if (pageY < 10) {

    //     //     return

    //     // }

    //     var topDivHeight = topStartHeight + (pageY - starty);

    //     // var bottomDivHeight=bottomStartHeight-(pageY-starty);

    //     var bottomDivHeight = maxHeight - topDivHeight - 2;



    //     if(topDivHeight<=0||bottomDivHeight<=0){

    //         return;

    //     }





    //     topDiv.style.height = topDivHeight + "px"



    //     bottomDiv.style.height = bottomDivHeight + "px"

    // }



    // function pcLineOneEnd() {

    //     document.removeEventListener('mousemove', pcLineOneMove, false);

    //     wd.display.initWdFitHeight();

    // }



}