// JavaScript Document
var holder_main=1;
var holder_th1=2;
var holder_th2=3;
var holder_th3=4;
var holder_th4=5;

function ChangeImage(th,pic_name)
{
	if (th == 1 ) //thumbnail holder number
	{	
			document["i_1"].src = pic_name + holder_th1 + ".jpg";
			document["i_th1"].src = pic_name  + holder_main + "_thumb.jpg";
			var temp = 0;
			temp = holder_main;
			holder_main = holder_th1;
			holder_th1 = temp;

	}
	if (th == 2 )
	{	
			document["i_1"].src = pic_name + holder_th2 + ".jpg";
			document["i_th2"].src = pic_name  + holder_main + "_thumb.jpg";
			var temp = 0;
			temp = holder_main;
			holder_main = holder_th2;
			holder_th2 = temp;
	}	
	if (th == 3 ) //thumbnail holder number
	{	
			document["i_1"].src = pic_name + holder_th3 + ".jpg";
			document["i_th3"].src = pic_name  + holder_main + "_thumb.jpg";
			var temp = 0;
			temp = holder_main;
			holder_main = holder_th3;
			holder_th3 = temp;

	}
	if (th == 4 )
	{	
			document["i_1"].src = pic_name + holder_th4 + ".jpg";
			document["i_th4"].src = pic_name  + holder_main + "_thumb.jpg";
			var temp = 0;
			temp = holder_main;
			holder_main = holder_th4;
			holder_th4 = temp;
	}	
}