var globalPic;
	var fileTypes=["bmp","gif","png","jpg","jpeg"];
	var outImage="imgpreview";
	var defaultPic="images/trans_pixel.jpg";
	
	//Pass in image source, maxwidth, maxheight
	function PreviewExistingImage(source, maxWidth, maxHeight)
	{
	  globalPic=new Image();
	  globalPic.src=source;
	  setTimeout("applyChanges(" + maxWidth + "," + maxHeight + ")",200);
	}		
		
	function applyChanges(maxWidth, maxHeight){
	  var field=document.getElementById(outImage);
	  var x=parseInt(globalPic.width);
	  var y=parseInt(globalPic.height);
	  if (x>maxWidth)
	  {
	    y*=maxWidth/x;
	    x=maxWidth;
	  }
	  if (y>maxHeight)
	  {
	    x*=maxHeight/y;
	    y=maxHeight;
	  }
	  field.style.display=(x<1 || y<1)?"none":"";
	  field.src=globalPic.src;
	  field.width=x;
	  field.height=y;
	}	
	
	function PopUp(display) {

		var url = "LargeView.asp?display=" + display
		window.open(url,'LargeView','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no,width=520,height=540,top=5,left=150');

	}