// JavaScript Document

var montharray = new Array("Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"); 

function checkform()
{
	
	if (document.aform.email.value=='')
	{
		alert('\nNo email address entered.');
		document.aform.email.select();
		document.aform.email.focus();
		return false;
	}
	if (document.aform.email.value.indexOf('@',0)==-1 || document.aform.email.value.indexOf('.',0)==-1)
	{
		alert('\nInvalid email address.');
		document.aform.email.select();
		document.aform.email.focus();
		return false;
	}

	if (!checklistfield()){
		return false;
	}

	if(!checkdropdownfield()){
		return false;
	}

	return true;		
}

function checkdropdownfield() {
	var forminput = document.getElementsByTagName('SELECT');
	var j=0;
	while(j<forminput.length) { 
		if( forminput[j].name !='status' && forminput[j].name !='bodyformat' ) {  // input 
			if( forminput[j].mandatory==1)   { //need to validate data
				if(forminput[j].value=='0'){      
					alert('Please select an answer in the '+forminput[j].validstr+' field.');
					return false;
				} 
			}
		}
		j=j+1;  
	} // end of while loop
	return true;
}


function checklistfield(){
	var forminput = document.getElementsByTagName('INPUT');
	var j=0;
	var num=0;
	var k=0; 
	while(j<forminput.length) { 
		if(forminput[j].type!='hidden'){ 
			if( forminput[j].type=='text' ) {  // input 
				if( forminput[j].mandatory==1)   { //need to validate data
					if(forminput[j].value==''){      
						alert('Please complete the '+forminput[j].validstr+' field.');
                       	forminput[j].select();                         
						forminput[j].focus();
						return false;
					}else {
						if(forminput[j].dataformattype=='2'){
							if (isNumber(forminput[j].value)==false){ 
								alert('Please enter a valid number in the '+forminput[j].validstr+' field.');
								forminput[j].select();                         
								forminput[j].focus();
								return false;
							}
						}else if(forminput[j].dataformattype=='3'){ // url address
							if (forminput[j].value.indexOf('www',0)==-1 || forminput[j].value.indexOf('.',0)==-1){
                                alert('Please enter a valid URL in the '+forminput[j].validstr+' field.');
                                forminput[j].select();
                                forminput[j].focus();
                                return false;
							}
						}
					}
				}else {  // not mandatory , if it is not empty , it also need validate the "input " 
					if(forminput[j].value==''){ // it is ok      
					}else {  // if it is not empty , it need validate data 
						if(forminput[j].dataformattype=='2'){
							if (isNumber(forminput[j].value)==false){ 
								alert('Please enter a valid number in the '+forminput[j].validstr+' field.');
								forminput[j].select();                         
								forminput[j].focus();
								return false;
							}
						}else if(forminput[j].dataformattype=='3'){ // url address
							if (forminput[j].value.indexOf('http:',0)==-1 || forminput[j].value.indexOf('.',0)==-1){
                                alert('Please enter a valid URL in the '+forminput[j].validstr+' field.');
                                forminput[j].select();
                                forminput[j].focus();
                                return false;
							}
						}
					}
				}
			} 
			if( forminput[j].type=='checkbox' ) {        // multi
				if( forminput[j].mandatory==1)   { //need to validate data 
					k=0;
					num=0;
					while (forminput[j].name==forminput[j+k].name) {
						// alert(forminput[j+k].checked);
						if( forminput[j+k].checked) {
							num=num+1;
						}
						k=k+1;
					} // end of while        
					if (num==0) {
						alert('Please select one or more answers in the '+forminput[j].validstr+' field.');
						forminput[j+k-1].select();                         
						forminput[j+k-1].focus(); 
						return false;
					}
					j=j+k -1; 
				}  
			} // end of checkbox   
		} // end of "hidden"
		j=j+1;  
	} // end of while loop
	return true;
}

function isNumber(s){  
	var i;
	for (i = 0; i < s.length; i++) {   
		// Check that current character is number 
		
		var c = s.charAt(i);

		if (! (( isDigit(c) )|| isPoint(c)) ) { 
		return false;   
		}
	}
	var num=0; 
	for (i = 0; i < s.length; i++) {   
		// Check that current character is number 
		var c = s.charAt(i);
		if ( isPoint(c) ) {
			num=num+1;  
		} 
	} 
	if (num > 1) {
		return false;
	}    
	return true;
} 

function isPoint(c){ 
	return (c=='.');
} 

function isDigit (c)
{   return ((c >= "0") && (c <= "9"));
} 

function isPhone(s){
	return (parseInt(s)>0 && isPlus(s) && s.length > 5 ) 
}           

function isPlus(s){
	if(s.charAt(0)=="+" || isDigit(s.charAt(0)) ){
		return true;
	}else {
		return false;
	}
}
function isDigit (s)
{   return ((s >= "0") && (s <= "9"))
}