function leftck()
{
    var linpts = document.getElementsByTagName("input");
    for (var i=0; i<linpts.length; i++) 
    {
        if(linpts[i].type == "text")
            {
                var obj = linpts[i];
                if(obj.name == "Name")
                    {
                        if (obj.value == "")
                            {   alert("Name is a required field. Please enter your name.");
                                return false;
                            }
                    }
                if(obj.name == "Email")
                    {
                        if ((obj.value == "") || (obj.value.indexOf("@") == -1))
                            {   alert("Please enter a valid email address");
                                return false;
                            }
                    }
                if(obj.name == "PartNumber")
                    {
                        if (obj.value == "")
                            {   alert("Part Number is a required field. Please enter your name.");
                                return false;
                            }
                    }
            }
    }
    return true;
}

function rightck()
{
    var rinpts = document.getElementsByTagName("input");
    for (var j=0; j<rinpts.length; j++)
    {
        if(rinpts[j].type == "text")
            {
                var org = rinpts[j];
                if(org.name == "RName")
                    {
                        if (org.value == "")
                            {   alert("Name is a required field. Please enter your name.");
                                return false;
                            }
                    }
                if(org.name == "REmail")
                    {
                        if ((org.value == "") || (org.value.indexOf("@") == -1))
                            {   alert("Please enter a valid email address");
                                return false;
                            }
                    }
                if(org.name == "ModelNumber")
                    {
                        if (org.value == "")
                            {   alert("Model Number is a required field. Please enter your name.");
                                return false;
                            }
                    }
                if(org.name == "PartDescription")
                    {
                        if (org.value == "")
                            {   alert("Part Description is a required field. Please enter your name.");
                                return false;
                            }
                    }
            }
    }
    return true;                                
}