function preloadImage(){
	var d=document;
	if(d.images){
		if(!d.preloadImagesArr) d.preloadImagesArr=new Array();
    	var i1,i2,j=d.preloadImagesArr.length,a=preloadImage.arguments;
		for(i1=1; i1<=a.length; i1++){
			d.preloadImagesArr["img_0"+i1]=new Array(a[i1-1].length);
			for(i2=0; i2<a[i1-1].length; i2++){
				d.preloadImagesArr["img_0"+i1][i2]=new Image();
				d.preloadImagesArr["img_0"+i1][i2].src=a[i1-1][i2];
			}
		}
	}	
}

function swapImage(img,image_path){
	tagimg=document.getElementById(img);
	tagimg.src=document.preloadImagesArr[img][image_path-1].src;
}

function restoreImage(img,image_path){
	tagimg=document.getElementById(img);
	tagimg.src=image_path;
}