// --------------------------------------------------------------
// javascript funtions library - common to all pages


// --------------------------------------------------------------
// preload images for faster webpage viewing
function preloadImages() { 
	var d=document; 
	if(d.images){ 
		if(!d.MM_p) 
			d.MM_p=new Array();

	var i,j=d.MM_p.length,a=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];}
		}
}

// --------------------------------------------------------------
// dynamically load javascript or stylesheet files
function loadjscssfile(filename, filetype){
 if (filetype=="js"){ //if filename is a external JavaScript file
  var fileref=document.createElement('script')
  fileref.setAttribute("type","text/javascript")
  fileref.setAttribute("src", filename)
 }
 else if (filetype=="css"){ //if filename is an external CSS file
  var fileref=document.createElement("link")
  fileref.setAttribute("rel", "stylesheet")
  fileref.setAttribute("type", "text/css")
  fileref.setAttribute("href", filename)
 }
 if (typeof fileref!="undefined")
  document.getElementsByTagName("head")[0].appendChild(fileref)
}