function addLoadEvent(func)
{
    var oldonload = window.onload;   
    if (typeof window.onload != 'function') 
    {      
        window.onload = func; 
    } 
    else
    {  
        window.onload = function() 
        {   
            oldonload();   
            func();   
        }   
    }  
} 

function nav(url)
{
    document.location = url;
}

function formatPhone()
{
    var tPhone = document.form1.phone.value.replace(/^\s*/, "").replace(/\s*$/, "");
    tPhone = tPhone.replace(/ /g, '-');
    tPhone = tPhone.replace(/\./g, '-');
    tPhone = tPhone.replace('(', '');
    tPhone = tPhone.replace(')', '');
    if(tPhone.charAt(3) != '-')
        
    document.form1.phone.value = tPhone;                
    
}     
function formatNumber(myevent) 
{ 
            
    var value = document.form1.phone.value;         
    var valueLen = document.form1.phone.value.length; 
    
    if(valueLen>2 && valueLen<4) 
    {    
       
        if(myevent.keyCode==8) 
            document.form1.phone.value=document.form1.phone.value.remove(valueLen-1,1); 
        else                
            document.form1.phone.value=document.form1.phone.value+"-"; 
                        
    } 
    if(valueLen>6 && valueLen<8) 
    { 
        if(myevent.keyCode==8) 
            document.form1.phone.value=document.form1.phone.value.remove(valueLen-1,1); 
        else 
            document.form1.phone.value=document.form1.phone.value+"-"; 
    } 
} 
function checkKey(myevent)
{
    myevent = myevent || window.event;
    var code = myevent.keyCode || myevent.which;
    
    if(code==9){return true;}
    if(code==8){charRemove();}       
    if ((code >= 48 && code <= 57) )
        {return true;} 
    else {return false;}
    
    
}