javascript考试知识考点：实现鼠标拖动改变层大小的方法
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"text/html; charset=gb2312" htt
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this.grabx = null; //Some useful values
this.graby = null;
this.width = null;
this.height = null;
this.left = null;
this.top = null;
}
function getDirection(el) {
var xPos, yPos, offset, dir;
dir = "";
xPos = window.event.offsetX;
yPos = window.event.offsetY;
offset = 8; //The distance from the edge in pixels
if (yPos"n";
else if (yPos > el.offsetHeight-offset) dir += "s";
if (xPos"w";
else if (xPos > el.offsetWidth-offset) dir += "e";
return dir;
}
function doDown() {
var el = getReal(event.srcElement, "className", "resizeMe");
if (el == null) {
theobject = null;
return;
}
dir = getDirection(el);
if (dir == "") return;
theobject = new resizeObject();
theobject.el = el;
theobject.dir = dir;
theobject.grabx = window.event.clientX;
theobject.graby = window.event.clientY;
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