var curr=1;
var active_thesis=1;
var active_seminar=1;
var active_color=1;
var active_course=1;
function hide(id,q) {

	if(q==1) {
		document.getElementById("hide").style.display="block";
		document.getElementById("show").style.display="none";
 		document.getElementById(id).style.display="block";
	} else if(q==0) { 
		document.getElementById("hide").style.display="none";
		document.getElementById("show").style.display="block";
 		document.getElementById(id).style.display="none";	
	}

}

function showPart(id,d,form){
        	
        if(form==1){
            a=disp_alert_course_packet(id,active_course); 
            if(a==false)
                return false; 
            else active_course=id;
        }  
    
        if(form==2){
            
            a=disp_alert_thesis(id,active_thesis); 
            
            if(a==false)
                return false;  
            else active_thesis=id;
        }
        
        if(form==3){
            a=disp_alert_seminar(id,active_seminar); 
            if(a==false)
                return false;
            else active_seminar=id;
        }
        
        if(form==4){
            a=disp_alert_color_copy(id,active_color); 
            if(a==false)
                return false;
            else active_color=id;
        }
        
       	curr=id;
        
        	for (i=1;i<=d;i++){
         	   document.getElementById('n'+i+'_section').style.display = 'none';
	   	  document.getElementById('form_'+i).style.backgroundColor = '#fefefe';
	   	  document.getElementById('form_'+i).style.color = '#cccccc';

        	}
        
       	 document.getElementById('n'+id+'_section').style.display = 'block';
        	document.getElementById('form_'+id).style.backgroundColor = '#180C4A';
		 document.getElementById('form_'+id).style.color='#ffffff';
		if(curr==1) { 
			document.getElementById('prev').style.display='none';
			document.getElementById('next').style.display='block';
		} else if(curr==d) {
			document.getElementById('prev').style.display='block';
			document.getElementById('next').style.display='none';
		} else {
			document.getElementById('prev').style.display='block';
			document.getElementById('next').style.display='block';
		}
}

function showForm(id,irany,form) {	
                if(form==1){
                    a=disp_alert_course_packet(id,active_course); 
                    if(a==false)
                        return false; 
                    else active_course=id;
                }  

                if(form==2){
                    a=disp_alert_thesis(id,active_thesis); 
                    if(a==false)
                        return false; 
                    else active_thesis=id;
                }

                if(form==3){
                    a=disp_alert_seminar(id,active_seminar); 
                    if(a==false)
                        return false;
                    else active_seminar=id;
                }

                if(form==4){
                    a=disp_alert_color_copy(id,active_color); 
                    if(a==false)
                        return false;
                    else active_color=id;
                }
    
    
    
	         	for (i=1;i<=id;i++){
         	  document.getElementById('n'+i+'_section').style.display = 'none';
	   	  document.getElementById('form_'+i).style.backgroundColor = '#fefefe';
	   	  document.getElementById('form_'+i).style.color = '#cccccc';

        	}	       


		document.getElementById('next').style.display='block';
              document.getElementById('prev').style.display='block'; 

		if(irany==2) { 
			curr++;
		} else { 
			curr--;
		}
         	document.getElementById('n'+curr+'_section').style.display = 'block';
      		document.getElementById('form_'+curr).style.backgroundColor = '#180C4A';
		document.getElementById('form_'+curr).style.color='#ffffff';
		if(curr==1) { 
			document.getElementById('prev').style.display='none';
		} else if(curr==id) {
			document.getElementById('next').style.display='none'; 
             }


	

	
		
  }     
       
    
    
function showPrevPacket(value)   {
        if(value==1){
           document.getElementById('prev_packet').style.display='block';
        }else{
           document.getElementById('prev_packet').style.display='none'; 
        }
    }