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 contact()
{ 

		if(document.enquiry.name.value=="")
	{
		alert("Enter name.");
		document.enquiry.name.focus();
		return false;
	}
	if(trim(document.enquiry.name.value)=="")
	   {
	   alert("Please enter name");
	   document.enquiry.name.focus();
	   return false;
	   }
	   	else
	  {
	var str=document.enquiry.name.value;
			var str1=document.enquiry.name.value.length;
			var iChars = "*|\"<>[]{}`\';()@&$#%0123456789";
			for (var i = 0; i <str1; i++)
			{
				if(iChars.indexOf(str.charAt(i)) != -1)
				{
					alert("Enter valid name.");
					document.enquiry.name.value="";
					document.enquiry.name.focus();
					return false;
				}
			}
	  }
	  
			if(document.enquiry.company.value=="")
	{
		alert("Enter company.");
		document.enquiry.company.focus();
		return false;
	}
	if(trim(document.enquiry.company.value)=="")
	   {
	   alert("Please enter company");
	   document.enquiry.company.focus();
	   return false;
	   }  
	   
	   
	   
	   
	
if(document.enquiry.email.value=="")
	{
		alert("Enter Email.");
		document.enquiry.email.focus();
		return false;
	}
	if(trim(document.enquiry.email.value)=="")
	   {
	   alert("Please enter the email-id");
	   document.enquiry.email.focus();
	   return false;
	   }
	else
	  {
	var str=document.enquiry.name.value;
			var str1=document.enquiry.name.value.length;
			var iChars = "*|\"<>[]{}`\';()@&$#%0123456789";
			for (var i = 0; i <str1; i++)
			{
				if(iChars.indexOf(str.charAt(i)) != -1)
				{
					alert("Enter valid name.");
					document.enquiry.name.value="";
					document.enquiry.name.focus();
					return false;
				}
			}
	  }
	 var str=document.enquiry.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.enquiry.email.focus();
      return false
    }
    if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr)
    {
      alert("Enter valid Email_id.");
      document.enquiry.email.focus();
      return false
    }
    if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr)
    {
      alert("Enter valid Email_id.");
      document.enquiry.email.focus();
      return false
    }
    if (str.indexOf(at,(lat+1))!=-1)
    {
      alert("Enter valid Email_id.");
      document.enquiry.email.focus();
      return false
    }
    if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot)
    {
      alert("Enter valid Email_id.");
      document.enquiry.email.focus();
      return false
    }
    if (str.indexOf(dot,(lat+2))==-1)
    {
      alert("Enter valid Email_id.");
      document.enquiry.email.focus();
      return false
    }
    if (str.indexOf(" ")!=-1)
    {
      alert("Enter valid Email_id.");
      document.enquiry.email.focus();
      return false
    }  
	
	  
		if(document.enquiry.state.value=="")
	{
		alert("Enter state.");
		document.enquiry.state.focus();
		return false;
	}
	if(trim(document.enquiry.state.value)=="")
	   {
	   alert("Please enter state");
	   document.enquiry.state.focus();
	   return false;
	   }
	   	else
	  {
	var str=document.enquiry.state.value;
			var str1=document.enquiry.state.value.length;
			var iChars = "*|\"<>[]{}`\';()@&$#%0123456789";
			for (var i = 0; i <str1; i++)
			{
				if(iChars.indexOf(str.charAt(i)) != -1)
				{
					alert("Enter valid state.");
					document.enquiry.state.value="";
					document.enquiry.state.focus();
					return false;
				}
			}
	  }	  
	


if(document.enquiry.zipcode.value=="")
	{
		alert("Enter zipcode.");
		document.enquiry.zipcode.focus();
		return false;
	}
	if(trim(document.enquiry.zipcode.value)=="")
	   {
	   alert("Please enter zipcode");
	   document.enquiry.zipcode.focus();
	   return false;
	   }
		var sal = document.enquiry.zipcode.value;
		
		
			var str=document.enquiry.zipcode.value;
			var str1=document.enquiry.zipcode.value.length;
			var iChars = "*|\"<>[]{}`\';()@&$#%";
			for (var i = 0; i <str1; i++)
			{
				if(iChars.indexOf(str.charAt(i)) != -1)
				{
					alert("Enter valid zipcode.");
					document.enquiry.zipcode.value="";
					document.enquiry.zipcode.focus();
					return false;
				}
			}
	  
		
		
	 var sal = document.enquiry.zipcode.value;
	 if(sal!='')
	 {
		if(sal.length <7)
		  {
				alert("Please Enter zipcode minimum 7 digits");
				document.enquiry.zipcode.value="";
				document.enquiry.zipcode.focus();
				return false;
		  }
	 }
		

	 
	 
	 if(document.enquiry.phone.value=="")
	{
		alert("Enter phone.");
		document.enquiry.phone.focus();
		return false;
	}
	if(trim(document.enquiry.phone.value)=="")
	   {
	   alert("Please enter phone");
	   document.enquiry.phone.focus();
	   return false;
	   }
		var sal = document.enquiry.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.enquiry.phone.value="";
			document.enquiry.phone.focus();
			return false;
		}
	
	if(sal<1)
	{
		alert(" Enter valid Phone no..");
		document.enquiry.phone.value="";
		document.enquiry.phone.focus();
		return false;
	}
	 var sal = document.enquiry.phone.value;
			var blnFlag = false;
			if(document.enquiry.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.enquiry.phone="";
				document.enquiry.phone.focus();
				return false;
			}
		
		
	if(sal.length <10)
		  {
				alert("Please Enter Phone no. minimum 10 digits");
				document.enquiry.phone.value="";
				document.enquiry.phone.focus();
				return false;
		  }
		if(sal.length >15)
		  {
				alert("Please Enter Phone no. not more than 15 digits");
				document.enquiry.phone.value="";
				document.enquiry.phone.focus();
				return false;
		  }

		if(document.enquiry.address.value=="")
	{
		alert("Enter address.");
		document.enquiry.address.focus();
		return false;
	}
	if(trim(document.enquiry.address.value)=="")
	   {
	   alert("Please enter address");
	   document.enquiry.address.focus();
	   return false;
	   }
	   		if(document.enquiry.comments.value=="")
	{
		alert("Enter comments.");
		document.enquiry.comments.focus();
		return false;
	}
	if(trim(document.enquiry.comments.value)=="")
	   {
	   alert("Please enter comments");
	   document.enquiry.comments.focus();
	   return false;
	   }

	document.enquiry.submit();
}