var irider=0;var current_installation=0;function installation(x,y,title,blurb){var ele=document.getElementById("mainimage");var a;var img;var self=this;var id;id="h"+irider;a=create_a("#",id);a.style.position="absolute";a.style.left=x+"px";a.style.top=y+"px";a.style.zindex=50;a.onmouseover=function(){self.fade_in();};img=create_img("map/h"+irider+".gif");a.appendChild(img);ele.appendChild(a);this.fade=new emootfade(id,0);this.title=title;this.blurb=blurb;irider++;};installation.prototype.show_text=function(){var ele=document.getElementById("mapblurb");ele.innerHTML="<h1>"+this.title+"</h1>"+this.blurb;};installation.prototype.fade_in=function(){var ci=current_installation;if(current_installation&&current_installation!=this)current_installation.fade_out();current_installation=this;this.fade.start(1,250);this.show_text();};installation.prototype.fade_out=function(){this.fade.start(0,250);};installation.prototype.activate=function(){this.fade.start(1,1);this.show_text();if(current_installation){var ci=current_installation;current_installation=0;ci.fade_out();};current_installation=this;};function initialise_installations(){}