function changeImage(filename)
{
   document.mainimage.src = filename;
}

function selectAll(myform, ischecked) 
{
	for (var i=0;i < document.forms['img_delete'].length;i++)
	{
  		fldObj = document.forms['img_delete'].elements[i];

		if (fldObj.type == 'checkbox')
		{
			if(ischecked == 0)
				fldObj.checked = true;
			else 
				fldObj.checked = false;
		}
	}
} 

function refresh_page(img_type, filter)
{
	//CREATE A GET STRING AND THEN REFRESH TO THAT PAGE
	str="index.php?type="+img_type+"&&filter="+filter;
	self.location.href=str;	
}