function preloadImages(args) // preload script
{ 
	for (var i = 0; i < args.length; i++) {
		var  img = new Image();
		img.src = args[i];
	}
}

preloadImages(['/images/tabs/orange_hover_right.png','/images/tabs/orange_hover_left.png','/images/tabs/orange_hover_center.png','/images/tabs/blue_hover_right.png','/images/tabs/blue_hover_left.png','/images/tabs/blue_hover_center.png']);


var classToSearchBlue = "blue-tab";
var classToSearchOrange = "orange-tab";
window.onload = function(){
	var links = document.getElementsByTagName("a");
	for ( var i = 0; i < links.length; i++ ) {
	   if ( links[i].className.match( classToSearchBlue ) ) {
	     links[i].onmouseover = function() {
				this.className = this.className  + " blue-tab-hover";
			}
	     links[i].onmouseout = function() {
		 		this.className = this.className.substring(0,this.className.length -15);
		 	}
	   }
          if ( links[i].className.match( classToSearchOrange ) ) {
	     links[i].onmouseover = function() {
				this.className = this.className  + " orange-tab-hover";
			}
	     links[i].onmouseout = function() {
		 		this.className = this.className.substring(0,this.className.length -15);
		 	}
	   }
	}
}