var check_on=new Image
 var check_on_down=new Image
 var check_off_down=new Image
 check_on.src="/images/check_on.gif"
 check_on_down.src="/images/check_on_down.gif"
 check_off_down.src="/images/check_off_down.gif"
 
 function showInfo(text){
   document.getElementById("infoBox").innerHTML=text;
}
function hideInfo(){
   document.getElementById("infoBox").innerHTML="Посочете с мишката име на курс и тук ще се изпише кратка информация за него."
}

 function parentShowInfo(text){
   parent.document.getElementById("infoBox").innerHTML=text;
}
function parentHideInfo(){
   parent.document.getElementById("infoBox").innerHTML="Посочете с мишката име на курс и тук ще се изпише кратка информация за него."
}

 function subCheck(name, cost){
   check1(document.getElementById(name), cost)
}

 function subCheckRequest(name, cost){
   checkRequest(document.getElementById(name))
}

 function check(obj){
   if(obj.src.indexOf("off")>0){
     obj.src="/images/check_on.gif"
   }else{
     obj.src="/images/check_off.gif"
   }
}

 function check1(obj, cost){
   var obj1=parent.document.getElementById("Registration")
   var obj2=parent.document.getElementById("totalCost")
   if(obj.src.indexOf("off")>0){
     obj.src="/images/check_on.gif"
     if(obj1.value.indexOf(obj.id)<0)
       obj1.value+=obj.id
       obj2.innerHTML=parseInt(obj2.innerHTML)+cost
       parent.tmpCost+=cost
   }else{
     obj.src="/images/check_off.gif"
     obj1.value=obj1.value.replace(obj.id,"")
     obj2.innerHTML=parseInt(obj2.innerHTML)-cost
     parent.tmpCost-=cost
   }
}

function checkRequest(obj){
   var obj1=parent.document.getElementById("Request")
   if(obj.src.indexOf("off")>0){
     obj.src="/images/check_on.gif"
     if(obj1.value.indexOf(obj.id)<0)
       obj1.value+=obj.id
   }else{
     obj.src="/images/check_off.gif"
     obj1.value=obj1.value.replace(obj.id,"")
   }
}

 function subCheckDown(name){
   checkDown(document.getElementById(name))
}

function subCheckAA(name){
   check(document.getElementById(name))
}

 function checkDown(obj){
   if(obj.src.indexOf("off")>0){
     obj.src="/images/check_off_down.gif"
   }else{
     obj.src="/images/check_on_down.gif"
   }
}

 function checkSelected(names){
   if(names!=""){
     names=names.substring(1,names.length-1)
     names=names.split("::");
     for(i=0;i<names.length;i++)
       if(document.getElementById(":"+names[i]+":")!=null)
         document.getElementById(":"+names[i]+":").onmouseup()
   }
}