var popwindow

var tisurl

var tiswidth

var tisheight

var tistopposition

var tisleftposition

var pause=20

var step=10

var marginright

var endposition

var timer



function openpopup(thisurl,thiswidth,thisheight,thistopposition) {

	tisurl=thisurl

	tiswidth=thiswidth

	tisheight=thisheight

	tistopposition=thistopposition

	tisleftposition=-tiswidth

	



	popwindow=window.open(tisurl, "newwindow", "toolbar=no,width="+tiswidth+",height="+tisheight+",top="+tistopposition+",left="+(tisleftposition)+"");



	if (document.all) {

		marginright=screen.width 

	        endposition=(marginright-thiswidth-10)/2

		movewindow()

	}

	if (document.layers) {

    	marginright=window.innerWidth-10

		endposition=marginright-thiswidth

		movewindow()

	}

}



function movewindow() {

	if (tisleftposition<=endposition) {

		popwindow.moveTo(tisleftposition,tistopposition)

		tisleftposition+=step

		timer= setTimeout("movewindow()",pause)

	}

	else {

		clearTimeout(timer)

	}

}