function checkContactPage()
{    
    str = window.location.href;    
    if(str.indexOf('contact_us.aspx?signup') != -1)
    {       
        if (document.getElementById("contactSignUpTxt")) document.getElementById("contactSignUpTxt").style.display = "block";        
        if (document.getElementById("contactTxt")) document.getElementById("contactTxt").style.display = "none";
        if (document.getElementById("fileDiv")) document.getElementById("fileDiv").style.display = "block";
    }
    else if(str.indexOf('contact_us.aspx?gallery') != -1)
    {
        if (document.getElementById("contactTxt")) document.getElementById("contactTxt").style.display = "block";
        if (document.getElementById("contactSignUpTxt")) document.getElementById("contactSignUpTxt").style.display = "none";        
        if (document.getElementById("fileDiv")) document.getElementById("fileDiv").style.display = "none";        
        document.getElementById("ctl00_ContentPlaceHolderEn_mailTo").selectedIndex = 0;
    }
    else if(str.indexOf('contact_us.aspx?customer') != -1)
    {
        if (document.getElementById("contactTxt")) document.getElementById("contactTxt").style.display = "block";
        if (document.getElementById("contactSignUpTxt")) document.getElementById("contactSignUpTxt").style.display = "none";        
        if (document.getElementById("fileDiv")) document.getElementById("fileDiv").style.display = "none";        
        document.getElementById("ctl00_ContentPlaceHolderEn_mailTo").selectedIndex = 1;
    }
    else if(str.indexOf('contact_us.aspx') != -1)
    {
        if (document.getElementById("contactTxt")) document.getElementById("contactTxt").style.display = "block";
        if (document.getElementById("contactSignUpTxt")) document.getElementById("contactSignUpTxt").style.display = "none";        
        if (document.getElementById("fileDiv")) document.getElementById("fileDiv").style.display = "none";        
    }
}