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startDrag: function(elem) {
elem.onmousedown =function(ev) {
dragObject = this;
mouseOffset = ws.m.pin.getMouseOffset(this, ev);
return false;
}
},
//information on where we clicked our item
getMouseOffset:function (target, ev){
ev = ev || window.event;
var mousePos = ws.m.pin.mouseCoords(ev);
var docPos = ws.m.pin.getPosition(target);
return {x:mousePos.x - docPos.x, y:mousePos.y - docPos.y};
},
//the coordinates of an item relative to the document
getPosition:function (e){
var left = 0;
var top = 0;
left = e.offsetLeft ;
top = e.offsetTop ;
return {x:left, y:top};
},
//capture the mouse coordinates
mouseCoords:function (ev){
if(ev.pageX || ev.pageY){
return {x:ev.pageX, y:ev.pageY};
}
return {
x:ev.clientX + document.body.scrollLeft - document.body.clientLeft,
y:ev.clientY + document.body.scrollTop - document.body.clientTop
};
},
//Moving an Item
mouseMove:function (ev) {
ev = ev || window.event;
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function C1(){}
function C2(){}
C2.prototype=new C1();
function C3(){}
C3.prototype=new C2();
var obj=new C3();
function C4(){}
C3.prototype=new C4();
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