var settime='10000';
 <!-- Numeric Value-->
function IsNumeric(strString)
   //  check for valid numeric strings	
   {
   var strValidChars = "0123456789.-+";
   var strChar;
   var blnResult = true;

   if (strString.length == 0) return false;

   //  test strString consists of valid characters listed above
   for (i = 0; i < strString.length && blnResult == true; i++)
      {
      strChar = strString.charAt(i);
      if (strValidChars.indexOf(strChar) == -1)
         {
         blnResult = false;
         }
      }
   return blnResult;
}
<!-- Character Value-->
function IsChar(value) {
if (/^[a-z][A-Z]/(value)) {
 // no spaces, full stops or anything but A-Z
return true;
}
}
<!-- Space Validation-->
function leftTrim(sString)
{
	while (sString.substring(0,1) == ' ')
	{
			sString = sString.substring(1, sString.length);
	}
	return sString;
}

function clearFld(ids)
{
	document.getElementById(ids).innerHTML='';
}

<!-- Email Validation-->
function isValidEmail(emailIn)
{
    var isEmailOk = false;
    var filter = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;


	if(emailIn.search(filter) != -1)
	isEmailOk = true;
	if(emailIn.indexOf("..") != -1)
	isEmailOk = false;
	if(emailIn.indexOf(".@") != -1)
	isEmailOk = false;
	if(emailIn.indexOf("'") != -1 || emailIn.indexOf("''") != -1 || emailIn.indexOf("\"") != -1 || emailIn.indexOf("\"\"") != -1 || emailIn.indexOf("(") != -1 || emailIn.indexOf(")") != -1 || emailIn.indexOf("[") != -1 || emailIn.indexOf("]") != -1 || emailIn.indexOf("{") != -1 || emailIn.indexOf("}") != -1 || emailIn.indexOf(",") != -1 || emailIn.indexOf(",,") != -1 || emailIn.indexOf(":") != -1 || emailIn.indexOf(";") != -1 || emailIn.indexOf("#") != -1 || emailIn.indexOf("mailto:") != -1)
	isEmailOk = false;
	
	return isEmailOk;
} 


function check_valid_form(frm)
{
	if(document.getElementById('companyname').value=="")
		{
				var companyname=document.getElementById('companyname').alt;
				document.getElementById('msgerror').innerHTML="Please Enter "+companyname;
				document.getElementById('companyname').focus();
				setTimeout("clearFld('msgerror')",+settime);
				return false;
		}
	else if(document.getElementById('name').value=="")
		{
				var name=document.getElementById('name').alt;
				document.getElementById('msgerror').innerHTML="Please Enter "+name;
				document.getElementById('name').focus();
				setTimeout("clearFld('msgerror')",+settime);
				return false;
		}

	else if(IsChar(document.getElementById('name').value)==true)
		{
				document.getElementById('msgerror').innerHTML="Please Enter Character";
				document.getElementById('name').focus();
				setTimeout("clearFld('msgerror')",+settime);
				return false;
		}
	else if(document.getElementById('requirement').value=="Select Requirement...")
		{
				var requirement=document.getElementById('requirement').alt;
				document.getElementById('msgerror').innerHTML="Please Select Requirement";
				document.getElementById('requirement').focus();
				setTimeout("clearFld('msgerror')",+settime);
				return false;
		}
	else if(document.getElementById('exp').value=="Select Exp...")
		{
				var requirement=document.getElementById('exp').alt;
				document.getElementById('msgerror').innerHTML="Please Select Experiance";
				document.getElementById('exp').focus();
				setTimeout("clearFld('msgerror')",+settime);
				return false;
		}
	else if(document.getElementById('details').value=="")
		{
				var details=document.getElementById('details').alt;
				document.getElementById('msgerror').innerHTML="Please Enter Details of Project";
				document.getElementById('details').focus();
				setTimeout("clearFld('msgerror')",+settime);
				return false;
		}
	
	else
	{
			get(frm, 'insert_data.php');
	}		
		
}

function check_contact(frm)
{
	if(document.getElementById('fullname').value=="")
		{
				document.getElementById('msgerror1').innerHTML="Please Enter Name";
				document.getElementById('fullname').focus();
				setTimeout("clearFld('msgerror1')",+settime);
				return false;
		}
	else if(leftTrim(document.getElementById('fullname').value)!=document.getElementById('fullname').value)
	{
			document.getElementById('msgerror1').innerHTML="Please Enter Valid Name";
				document.getElementById('fullname').focus();
				setTimeout("clearFld('msgerror1')",+settime);
				return false;
	}
	else if(IsChar(document.getElementById('fullname').value)==true)
		{
				document.getElementById('msgerror1').innerHTML="Please Enter Character";
				document.getElementById('fullname').focus();
				setTimeout("clearFld('msgerror1')",+settime);
				return false;
		}
	else if(document.getElementById('email_id').value=="")
		{
				document.getElementById('msgerror1').innerHTML="Please Enter Email";
				document.getElementById('email_id').focus();
				setTimeout("clearFld('msgerror1')",+settime);
				return false;
		}
	else if(!isValidEmail(document.getElementById('email_id').value))
		{
				document.getElementById('msgerror1').innerHTML="Please Enter valid Email";
				document.getElementById('email_id').focus();
				setTimeout("clearFld('msgerror1')",+settime);
				return false;
		}
	else if(document.getElementById('phone_no').value=="")
		{
				document.getElementById('msgerror1').innerHTML="Please Enter Phone No";
				document.getElementById('phone_no').focus();
				setTimeout("clearFld('msgerror1')",+settime);
				return false;
		}	
	else if(leftTrim(document.getElementById('phone_no').value)!=document.getElementById('phone_no').value)
	{
			document.getElementById('msgerror1').innerHTML="Please Enter Valid Phone No";
				document.getElementById('phone_no').focus();
				setTimeout("clearFld('msgerror1')",+settime);
				return false;
	}
	else if(IsNumeric(document.getElementById('phone_no').value)==false)
		{
				document.getElementById('msgerror1').innerHTML="Please Enter Numeric Phone no";
				document.getElementById('phone_no').focus();
				setTimeout("clearFld('msgerror1')",+settime);
				return false;
		}
	else
	{
			get(frm, 'insert_data.php');
	}	
		
}

function check_contactnow(frm)
{
	if(document.getElementById('name').value=="")
		{
				document.getElementById('msgerror1').innerHTML="Please Enter Name";
				document.getElementById('name').focus();
				setTimeout("clearFld('msgerror1')",+settime);
				return false;
		}
	else if(leftTrim(document.getElementById('name').value)!=document.getElementById('name').value)
	{
			document.getElementById('msgerror1').innerHTML="Please Enter Valid Name";
				document.getElementById('name').focus();
				setTimeout("clearFld('msgerror1')",+settime);
				return false;
	}
	else if(IsChar(document.getElementById('name').value)==true)
		{
				document.getElementById('msgerror1').innerHTML="Please Enter Character";
				document.getElementById('name').focus();
				setTimeout("clearFld('msgerror1')",+settime);
				return false;
		}
	else if(document.getElementById('companyname').value=="")
		{
				var companyname=document.getElementById('companyname').alt;
				document.getElementById('msgerror1').innerHTML="Please Enter "+companyname;
				document.getElementById('companyname').focus();
				setTimeout("clearFld('msgerror1')",+settime);
				return false;
		}
	else if(document.getElementById('email').value=="")
		{
				document.getElementById('msgerror1').innerHTML="Please Enter Email";
				document.getElementById('email').focus();
				setTimeout("clearFld('msgerror1')",+settime);
				return false;
		}
	else if(!isValidEmail(document.getElementById('email').value))
		{
				document.getElementById('msgerror1').innerHTML="Please Enter valid Email";
				document.getElementById('email').focus();
				setTimeout("clearFld('msgerror1')",+settime);
				return false;
		}
	else if(document.getElementById('website').value=="")
		{
				var website=document.getElementById('website').alt;
				document.getElementById('msgerror1').innerHTML="Please Enter "+website;
				document.getElementById('website').focus();
				setTimeout("clearFld('msgerror1')",+settime);
				return false;
		}
	else if(document.getElementById('phone_no').value=="")
		{
				document.getElementById('msgerror1').innerHTML="Please Enter Phone No";
				document.getElementById('phone_no').focus();
				setTimeout("clearFld('msgerror1')",+settime);
				return false;
		}	
	else if(leftTrim(document.getElementById('phone_no').value)!=document.getElementById('phone_no').value)
	{
			document.getElementById('msgerror1').innerHTML="Please Enter Valid Phone No";
				document.getElementById('phone_no').focus();
				setTimeout("clearFld('msgerror1')",+settime);
				return false;
	}
	else if(IsNumeric(document.getElementById('phone_no').value)==false)
		{
				document.getElementById('msgerror1').innerHTML="Please Enter Numeric Phone no";
				document.getElementById('phone_no').focus();
				setTimeout("clearFld('msgerror1')",+settime);
				return false;
		}
	else if(document.getElementById('phrases').value=="")
		{
				var phrases=document.getElementById('phrases').alt;
				document.getElementById('msgerror1').innerHTML="Please Enter "+phrases;
				document.getElementById('phrases').focus();
				setTimeout("clearFld('msgerror1')",+settime);
				return false;
		}
	else if(document.getElementById('monthly_budget').value=="")
		{
				document.getElementById('msgerror1').innerHTML="Please Select Monthly Budget";
				document.getElementById('monthly_budget').focus();
				setTimeout("clearFld('msgerror1')",+settime);
				return false;
		}
	else
	{
			get(frm, 'insert_data.php');
	}
	
}