// JavaScript Document

var pos = -440;
var runit;
var dir;
var target;
var cols;

function setVals(arg1, arg2, arg3, arg4) {

	runit = arg1; 
	dir = arg2;
	target = arg3;
	cols = arg4;
	
}

function shiftView() {

	if (runit == 'true') {

		var box = document.getElementById(target);
		
		var boxlimit = (cols - 1) * 220;
		
		if (dir == 'left' && Math.abs(pos) < boxlimit) {
			
			pos -= 5;
			
			box.style.left = pos + 'px';
			
		} 
			
		if (dir == 'right' && pos < 440) {
			
			pos += 5;
				
			box.style.left = pos + 'px';
			
		} 
		
		setTimeout("shiftView();", 25);
		
	}

}