/*
*   imageutil.js - javascript accessor functions for image rollovers, etc.
*  
*   Compiled By:  Steve Grevemeyer [steve@salvagenow.com]
*
*   Notes:
*       Standard Internet-derived functions.
*/

/*
    Ver  Date         Who   Description
    1.0  12 MAR 2003  SEG   Created Initial Version
*/

function MM_findObj(n, d) 
{ //v3.0
  var p,i,x;  
  if(!d) d=document; 
  if( (p=n.indexOf("?")) > 0 && parent.frames.length) 
  {
    d=parent.frames[n.substring(p+1)].document; 
    n=n.substring(0,p);
  }
  if(!(x=d[n])&&d.all) x=d.all[n]; 
  
  for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document); 
  
  return x;
}

/* Functions that swaps images. */
function MM_swapImage() 
{ //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; 
  
  document.MM_sr=new Array; 
  
  for(i=0; i<(a.length-2); i+=3)
  {
   if ((x=MM_findObj(a[i]))!=null)
   {
      document.MM_sr[j++]=x; 
      if(!x.oSrc) x.oSrc=x.src; 
      x.src=a[i+2];
   }
  }
}

function MM_swapImgRestore() 
{ //v3.0
  var i,x,a=document.MM_sr;
  for(i=0; a&&i < a.length && (x=a[i]) && x.oSrc; i++) x.src=x.oSrc;
}

/* Functions that handle preload. */
function MM_preloadImages() 
{ //v3.0
 var d=document; 
 
 if(d.images)
 { 
  if(!d.MM_p) d.MM_p=new Array();
 
   var i,j=d.MM_p.length,a=MM_preloadImages.arguments; 
   
   for(i=0; i < a.length; i++)
   {
     if (a[i].indexOf("#")!=0)
     { 
        d.MM_p[j]=new Image; 
        d.MM_p[j++].src=a[i];
     }
   }
 }
}

function checkBadChars(o)
{
  var str='';
  if( o.value.indexOf('.') > 0 )
  {
    str = "This field must not contain a DECIMAL point.";
  }

  if( o.value.indexOf(',') > 0 )
  {
    str = "This field must not contain a COMMA character.";
  } 
  
  if( o.value.indexOf('$') > 0 )
  {
    str = "This field must not contain a DOLLAR SIGN character.";
  } 

  if (str.length > 0) 
  {
      alert(str);
  }
}

function image_roll(img_swap, img_name) 
{ 
  img_name.src = img_swap 
}