function preload_image(image_name,image_src){if(document.images){eval(image_name+' = new Image()');eval(image_name+'.src = "'+image_src+'"');}}
function change_image(image_name,image_src){if(document.images){document.images[image_name].src=image_src;}}
function open_window(page_url,page_name,window_width,window_height,scrollbar_value,is_center){var window_pos_x=20;var window_pos_y=20;if(is_center=='yes'){window_pos_x=(screen.width/2)-(window_width/2);window_pos_y=(screen.height/2)-(window_height/2);}
popup_window=this.open(page_url,page_name,"toolbar=no,status=no,menubar=no,location=no,scrollbars="+scrollbar_value+",resizable=no,width="+window_width+",height="+window_height+",screenX="+window_pos_x+",screenY="+window_pos_y+",left="+window_pos_x+",top="+window_pos_y);popup_window.resizeTo(window_width+6,window_height+54);popup_window.focus();}
function anti_spam_email(user,domain,linktext){var username=user;var hostname=domain;if(linktext==''){linktext=username+"@"+hostname;}
document.write("<a href="+"mail"+"to:"+username+"&#064;"+hostname+">"+linktext+"</a>");}
function show_hide_element(id){var my_element=document.getElementById(id);if(my_element.style.display=="none"){my_element.style.display="block";}else{my_element.style.display="none";}}
function show_hide_dflt_val(action,input,default_val){input_name=document.getElementById(input);if(action=='focus'){if(input_name.value==default_val){input_name.value='';}}
if(action=='blur'){if(input_name.value==''){input_name.value=default_val;}}}
function urlencode(str){var histogram={},histogram_r={},code=0,tmp_arr=[];var ret=str.toString();var replacer=function(search,replace,str){var tmp_arr=[];tmp_arr=str.split(search);return tmp_arr.join(replace);};histogram['!']='%21';histogram['%20']='+';ret=encodeURIComponent(ret);for(search in histogram){replace=histogram[search];ret=replacer(search,replace,ret)}
return ret.replace(/(\%([a-z0-9]{2}))/g,function(full,m1,m2){return"%"+m2.toUpperCase();});return ret;}