function LTrim( value ) {
 	var re = /\s*((\S+\s*)*)/;
   	return value.replace(re, "$1");
     	
     }
     
    // Removes ending whitespaces
  function RTrim( value ) {
    	
  	var re = /((\s*\S+)*)\s*/;
   	return value.replace(re, "$1");
   	
   }
    
 // Removes leading and ending whitespaces
   function trim( value ) {
  	
    	return LTrim(RTrim(value));
   }


function submit1()
{

			if(document.f4.EnquiryType.value=="0")
	{
		alert("Select Enquiry Type.");
		document.f4.EnquiryType.focus();
		return false;
	}
	
	if(document.f4.CompanyName.value=="")
		{
			alert("Enter Company Name.");
			document.f4.CompanyName.focus();
			return false;
		}
	  if(trim(document.f4.CompanyName.value)=="")
		{
		alert("Please enter the Company Name");
		document.f4.CompanyName.focus();
		return false;
		}	
		else
	  {
	var str=document.f4.CompanyName.value;
			var str1=document.f4.CompanyName.value.length;
			var iChars = "*|\"<>[]{}`\';()@&$#%0123456789";
			for (var i = 0; i <str1; i++)
			{
				if(iChars.indexOf(str.charAt(i)) != -1)
				{
					alert("Enter valid Company Name.");
					document.f4.CompanyName.value="";
					document.f4.CompanyName.focus();
					return false;
				}
			}
	  }
	  
	  
	  
	  
	  	if(document.f4.ContactPerson.value=="")
		{
			alert("Enter Contact Person.");
			document.f4.ContactPerson.focus();
			return false;
		}
	  if(trim(document.f4.ContactPerson.value)=="")
		{
		alert("Please enter the ContactPerson");
		document.f4.ContactPerson.focus();
		return false;
		}	
		else
	  {
	var str=document.f4.ContactPerson.value;
			var str1=document.f4.ContactPerson.value.length;
			var iChars = "*|\"<>[]{}`\';()@&$#%0123456789";
			for (var i = 0; i <str1; i++)
			{
				if(iChars.indexOf(str.charAt(i)) != -1)
				{
					alert("Enter valid Contact Person.");
					document.f4.ContactPerson.value="";
					document.f4.ContactPerson.focus();
					return false;
				}
			}
	  }
	  
	  	if(document.f4.email.value=="")
	{
		alert("Enter Email.");
		document.f4.email.focus();
		return false;
	}
	if(trim(document.f4.email.value)=="")
	   {
	   alert("Please enter the email-id");
	   document.f4.email.focus();
	   return false;
	   }
	
	 var str=document.f4.email.value;
    var at="@"
    var dot="."
    var lat=str.indexOf(at)
    var lstr=str.length
    var ldot=str.indexOf(dot)
    if (str.indexOf(at)==-1)
    {
      alert("Enter valid Email_id.");
      document.f4.email.focus();
      return false
    }
    if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr)
    {
      alert("Enter valid Email_id.");
      document.f4.email.focus();
      return false
    }
    if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr)
    {
      alert("Enter valid Email_id.");
      document.f4.email.focus();
      return false
    }
    if (str.indexOf(at,(lat+1))!=-1)
    {
      alert("Enter valid Email_id.");
      document.f4.email.focus();
      return false
    }
    if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot)
    {
      alert("Enter valid Email_id.");
      document.f4.email.focus();
      return false
    }
    if (str.indexOf(dot,(lat+2))==-1)
    {
      alert("Enter valid Email_id.");
      document.f4.email.focus();
      return false
    }
    if (str.indexOf(" ")!=-1)
    {
      alert("Enter valid Email_id.");
      document.f4.email.focus();
      return false
    }  
	
	
	
	
	if(document.f4.address.value=="")
		{
			alert("Enter address.");
			document.f4.address.focus();
			return false;
		}
	  if(trim(document.f4.address.value)=="")
		{
		alert("Please enter the address");
		document.f4.address.focus();
		return false;
		}		
	else
	  {
	var str=document.f4.address.value;
			var str1=document.f4.address.value.length;
			var iChars = "*|\"<>[]{}`\';()@&$#%";
			for (var i = 0; i <str1; i++)
			{
				if(iChars.indexOf(str.charAt(i)) != -1)
				{
					alert("Enter valid address.");
					document.f4.address.value="";
					document.f4.address.focus();
					return false;
				}
			}
	  }
	  
	  
	  	
	if(document.f4.city.value=="")
		{
			alert("Enter city.");
			document.f4.city.focus();
			return false;
		}
	  if(trim(document.f4.city.value)=="")
		{
		alert("Please enter the city");
		document.f4.city.focus();
		return false;
		}		
	else
	  {
	var str=document.f4.city.value;
			var str1=document.f4.city.value.length;
			var iChars = "*|\"<>[]{}`\';()@&$#%0123456789";
			for (var i = 0; i <str1; i++)
			{
				if(iChars.indexOf(str.charAt(i)) != -1)
				{
					alert("Enter valid city.");
					document.f4.city.value="";
					document.f4.city.focus();
					return false;
				}
			}
	  }
	  if(document.f4.phone.value=="")
		{
			alert("Enter phone no.");
     		document.f4.phone.focus();
			return false;
		}
		else
	    {
		var sal = document.f4.phone.value;
		var blnFlag = false;
		for(i=0;i<=sal.length;i++)
		{	
			if (isNaN(sal.charAt(i)))
			{
				blnFlag = false;
				break;
			}
		}
		if(blnFlag==true)
		{
			alert("Enter valid phone no.");
			document.f4.phone.value="";
			document.f4.phone.focus();
			return false;
		}
	}
	if(sal<1)
	{
		alert(" Enter valid phone no..");
		document.f4.phone.value="";
		document.f4.phone.focus();
		return false;
	}
	
	/*	var str1=document.f4.phone.value.length;
		var iChars = "*|\"<>[]{}`\';()@&$#%";
			for (var i = 0; i <str1; i++)
			{
				if(iChars.indexOf(str.charAt(i)) != -1)
				{
					alert("Enter valid phone no.");
					document.f4.phone.value="";
					document.f4.phone.focus();
					return false;
				}
			}*/
	 var sal = document.f4.phone.value;
			var blnFlag = false;
			if(document.f4.phone.value==" ")
			{
				blnFlag = true;
			}
			
			for(i=0;i<=sal.length;i++)
			{
				if (isNaN(sal.charAt(i)))
				{
					if(sal.charAt(i)=='-')
					{
						if(sal.indexOf('-')==0)
						{
							blnFlag = true;
						}
						if(sal.indexOf('+')==0 && sal.indexOf('-')==1)
						{
							blnFlag = true;
						}
						else
						{
							blnFlag = false;
						}
					}
					else if(sal.charAt(i)=='+')
					{
						
						if(sal.indexOf('+')!=0)
						{
							//alert(sal.indexOf('+'));
							blnFlag = true;
						}
						else 
						{
							blnFlag = false;
						}
					}
					else
					{
						blnFlag = true;
						break;
					}
				}
			}
			if(blnFlag==true)
			{
				alert("Enter valid phone no.");
				document.f4.phone="";
				document.f4.phone.focus();
				return false;
			}
		
		if(sal.length >15)
		  {
				alert("Please Enter Phone no. not more than 15 digits");
				document.f4.phone.value="";
				document.f4.phone.focus();
				return false;
		  }
		
		if(document.f4.ContactMethod.value=="0")
	{
		alert("Select Contact Method.");
		document.f4.ContactMethod.focus();
		return false;
	}
			if(document.f4.ContactTime.value=="0")
	{
		alert("Select Contact Time.");
		document.f4.ContactTime.focus();
		return false;
	}
	
	
	  	
	if(document.f4.Comments.value=="")
		{
			alert("Enter Comments.");
			document.f4.Comments.focus();
			return false;
		}
	  if(trim(document.f4.Comments.value)=="")
		{
		alert("Please enter the Comments");
		document.f4.Comments.focus();
		return false;
		}	
		if(document.f4.EnquiryType.options[document.f4.EnquiryType.selectedIndex].value=='Service call')
	{

				if(document.f4.Machine.value=="0")
	{
		alert("Select  Machine TYPE.");
		document.f4.Machine.focus();
		return false;
	}
		/*if(document.f4.ModelNo.value=="")
		{
			alert("Enter ModelNo.");
			document.f4.ModelNo.focus();
			return false;
		}
	  if(trim(document.f4.ModelNo.value)=="")
		{
		alert("Please enter the ModelNo");
		document.f4.ModelNo.focus();
		return false;
		}	
		
			else
	  {
	var str=document.f4.ModelNo.value;
			var str1=document.f4.ModelNo.value.length;
			var iChars = "*|\"<>[]{}`\';()@&$#%";
			for (var i = 0; i <str1; i++)
			{
				if(iChars.indexOf(str.charAt(i)) != -1)
				{
					alert("Enter valid ModelNo.");
					document.f4.ModelNo.value="";
					document.f4.ModelNo.focus();
					return false;
				}
			}
	  }*/
	}
	
			document.f4.action="email.php";
			document.f4.submit();



}

function change()
{
	if(document.f4.EnquiryType.options[document.f4.EnquiryType.selectedIndex].value=='Service call')
	{
		document.getElementById("show_row").style.display = "block";
	}
	if(document.f4.EnquiryType.options[document.f4.EnquiryType.selectedIndex].value=='Sales Enquery')
	{
		document.getElementById("show_row").style.display = "none";
	}

}