function formCheck(form)
{
	if ((form.elem1.value != '') && (form.elem2.value != '') && (form.elem3.value != '') && (form.elem4.value != '')) { return true; } else {
		for (var i=1; i<5; i++)
		{
			if (i==1 && form.elem1.value == '') {form.elem1.value = 'Please enter a name';}
			else if (i==2 && form.elem2.value == '') {form.elem2.value = 'Please enter an email';}
			else if (i==3 && form.elem3.value == '') {form.elem3.value = 'Please enter a number';}
			else if (i==4 && form.elem4.value == '') {form.elem4.value = 'Please enter a comment';}
			else if (i==1 && form.elem1.value == 'Please enter a name') {form.elem1.value = 'Please enter a name';}
			else if (i==2 && form.elem2.value == 'Please enter an email') {form.elem2.value = 'Please enter an email';}
			else if (i==3 && form.elem3.value == 'Please enter a number') {form.elem3.value = 'Please enter a number';}
			else if (i==4 && form.elem4.value == 'Please enter a comment') {form.elem4.value = 'Please enter a comment';}
		}
		return false;
	}
}