var dragobject={
	z: 0, x: 0, y: 0, offsetx : null, offsety : null, targetobj : null, dragapproved : 0,
	initialize:function(){
		document.onmousedown=this.drag
		document.onmouseup=function(){this.dragapproved=0}
	},
	drag:function(e){
		var evtobj=window.event? window.event : e
		this.targetobj=window.event? event.srcElement : e.target
		if (this.targetobj.className=="drag"){
		this.dragapproved=1
		if (isNaN(parseInt(this.targetobj.style.left))){this.targetobj.style.left=0}
		if (isNaN(parseInt(this.targetobj.style.top))){this.targetobj.style.top=0}
		this.offsetx=parseInt(this.targetobj.style.left)
		this.offsety=parseInt(this.targetobj.style.top)
		this.x=evtobj.clientX
		this.y=evtobj.clientY
		if (evtobj.preventDefault)
			evtobj.preventDefault()
			document.onmousemove=dragobject.moveit
		}
	},
	moveit:function(e){
		var evtobj=window.event? window.event : e
		if (this.dragapproved==1){
		this.targetobj.style.left=this.offsetx+evtobj.clientX-this.x+"px"
		this.targetobj.style.top=this.offsety+evtobj.clientY-this.y+"px"
		return false
		}
	}
}

dragobject.initialize()