function ImageSlider(imgArray, divId)

{

	this.id = divId ;

	this.imageArray = imgArray;

	this.pos = 0 ;

	this.moveNext = showNextImage;

	this.movePrevious = showPrevImage;

	this.load = loadImage;

	preLoader(imgArray);

}



function preLoader(imgArray)

{

	var preloadedimages = new Array();

	for (i = 0;i<imgArray.length;i++) {

			preloadedimages[i] = new Image();

			preloadedimages[i].src = imgArray[i];

	}

}



function loadImage()

{

	var imgDrawStr = '<im' + 'g  sr'+'c="'+ this.imageArray[0] +'" id="'+ this.id + '" border="'+ 0 +'">';

	//alert(imgDrawStr);

	document.write(imgDrawStr);

}



function showNextImage()

{

	var which = 0;

	var oLoc = document.getElementById(this.id);

	if( this.pos < this.imageArray.length -1 )

	{

		which = this.pos + 1 ;

	}

	this.pos = which ;

	oLoc.src = this.imageArray[which] ;

}



function showPrevImage()

{

	var which = this.imageArray.length -1 ;

	var oLoc = document.getElementById(this.id);

	if (this.pos > 0)

	{

		which = this.pos - 1 ;

	}

	this.pos = which ;

	oLoc.src = this.imageArray[which] ;

}